Name Date
Pension worksheet
Grades 7–8 · CCSS 7.RP.A.3
Calcapedia Solve each problem and show your work. Round answers to 2 decimal places where needed.
- 1.
Problem 1. - Years of service: 26
- Pension multiplier: 1.8%
- Final average salary: $90,000
- Age when payments start: 50
- Lump sum offered (optional): $400,000
- Yearly return on the lump sum: 3%
- Age to plan to: 95
Find: Monthly pension
Answer
- 2.
Problem 2. - Years of service: 36
- Pension multiplier: 1.8%
- Final average salary: $70,000
- Age when payments start: 50
- Lump sum offered (optional): $410,000
- Yearly return on the lump sum: 5%
- Age to plan to: 90
Find: Monthly pension
Answer
- 3.
Problem 3. - Years of service: 45
- Pension multiplier: 1.7%
- Final average salary: $95,000
- Age when payments start: 75
- Lump sum offered (optional): $620,000
- Yearly return on the lump sum: 4%
- Age to plan to: 98
Find: Monthly pension
Answer
- 4.
Problem 4. - Years of service: 35
- Pension multiplier: 1.5%
- Final average salary: $80,000
- Age when payments start: 45
- Lump sum offered (optional): $475,000
- Yearly return on the lump sum: 5%
- Age to plan to: 100
Find: Monthly pension
Answer
- 5.
Problem 5. - Years of service: 28
- Pension multiplier: 1.4%
- Final average salary: $90,000
- Age when payments start: 56
- Lump sum offered (optional): $600,000
- Yearly return on the lump sum: 5%
- Age to plan to: 70
Find: Monthly pension
Answer
- 6.
Problem 6. - Years of service: 30
- Pension multiplier: 1.4%
- Final average salary: $75,000
- Age when payments start: 68
- Lump sum offered (optional): $500,000
- Yearly return on the lump sum: 4%
- Age to plan to: 70
Find: Monthly pension
Answer
- 7.
Problem 7. - Years of service: 28
- Pension multiplier: 1.5%
- Final average salary: $60,000
- Age when payments start: 55
- Lump sum offered (optional): $560,000
- Yearly return on the lump sum: 4%
- Age to plan to: 95
Find: Monthly pension
Answer
- 8.
Problem 8. - Years of service: 38
- Pension multiplier: 1.8%
- Final average salary: $75,000
- Age when payments start: 45
- Lump sum offered (optional): $400,000
- Yearly return on the lump sum: 6%
- Age to plan to: 80
Find: Monthly pension
Answer
- 9.
Problem 9. - Years of service: 33
- Pension multiplier: 1.5%
- Final average salary: $100,000
- Age when payments start: 66
- Lump sum offered (optional): $550,000
- Yearly return on the lump sum: 5%
- Age to plan to: 80
Find: Monthly pension
Answer
- 10.
Problem 10. - Years of service: 36
- Pension multiplier: 1.1%
- Final average salary: $90,000
- Age when payments start: 65
- Lump sum offered (optional): $650,000
- Yearly return on the lump sum: 5%
- Age to plan to: 120
Find: Monthly pension
Answer
Answer key: Pension worksheet
Calcapedia 1. Monthly pension: $3,510.00
Multiply your years of service by the multiplier. This is the share of your salary the pension replaces
Take that share of your final average salary to get your pension for a year
Divide by 12 to get your monthly payment
Divide the lump sum by the monthly payment. That's how many payments it takes to match it, with no investing
Round up to 114 whole months and add them to your starting age. This is the plain break-even age
Turn the 3% yearly return into a monthly rate, because the payments are monthly
Suppose you invest the lump sum and pay yourself $3,510.00 a month. The money lasts 134 months. After that, the pension is ahead
Total the payments from age 50 to age 95
Find what's left of the invested lump sum at age 95, if you paid yourself the same amount
2. Monthly pension: $3,780.00
Multiply your years of service by the multiplier. This is the share of your salary the pension replaces
Take that share of your final average salary to get your pension for a year
Divide by 12 to get your monthly payment
Divide the lump sum by the monthly payment. That's how many payments it takes to match it, with no investing
Round up to 109 whole months and add them to your starting age. This is the plain break-even age
Turn the 5% yearly return into a monthly rate, because the payments are monthly
Suppose you invest the lump sum and pay yourself $3,780.00 a month. The money lasts 144 months. After that, the pension is ahead
Total the payments from age 50 to age 90
Find what's left of the invested lump sum at age 90, if you paid yourself the same amount
3. Monthly pension: $6,056.25
Multiply your years of service by the multiplier. This is the share of your salary the pension replaces
Take that share of your final average salary to get your pension for a year
Divide by 12 to get your monthly payment
Divide the lump sum by the monthly payment. That's how many payments it takes to match it, with no investing
Round up to 103 whole months and add them to your starting age. This is the plain break-even age
Turn the 4% yearly return into a monthly rate, because the payments are monthly
Suppose you invest the lump sum and pay yourself $6,056.25 a month. The money lasts 125 months. After that, the pension is ahead
Total the payments from age 75 to age 98
Find what's left of the invested lump sum at age 98, if you paid yourself the same amount
4. Monthly pension: $3,500.00
Multiply your years of service by the multiplier. This is the share of your salary the pension replaces
Take that share of your final average salary to get your pension for a year
Divide by 12 to get your monthly payment
Divide the lump sum by the monthly payment. That's how many payments it takes to match it, with no investing
Round up to 136 whole months and add them to your starting age. This is the plain break-even age
Turn the 5% yearly return into a monthly rate, because the payments are monthly
Suppose you invest the lump sum and pay yourself $3,500.00 a month. The money lasts 198 months. After that, the pension is ahead
Total the payments from age 45 to age 100
Find what's left of the invested lump sum at age 100, if you paid yourself the same amount
5. Monthly pension: $2,940.00
Multiply your years of service by the multiplier. This is the share of your salary the pension replaces
Take that share of your final average salary to get your pension for a year
Divide by 12 to get your monthly payment
Divide the lump sum by the monthly payment. That's how many payments it takes to match it, with no investing
Round up to 205 whole months and add them to your starting age. This is the plain break-even age
Turn the 5% yearly return into a monthly rate, because the payments are monthly
Suppose you invest the lump sum and pay yourself $2,940.00 a month. The money lasts 438 months. After that, the pension is ahead
Total the payments from age 56 to age 70
Find what's left of the invested lump sum at age 70, if you paid yourself the same amount
6. Monthly pension: $2,625.00
Multiply your years of service by the multiplier. This is the share of your salary the pension replaces
Take that share of your final average salary to get your pension for a year
Divide by 12 to get your monthly payment
Divide the lump sum by the monthly payment. That's how many payments it takes to match it, with no investing
Round up to 191 whole months and add them to your starting age. This is the plain break-even age
Turn the 4% yearly return into a monthly rate, because the payments are monthly
Suppose you invest the lump sum and pay yourself $2,625.00 a month. The money lasts 299 months. After that, the pension is ahead
Total the payments from age 68 to age 70
Find what's left of the invested lump sum at age 70, if you paid yourself the same amount
7. Monthly pension: $2,100.00
Multiply your years of service by the multiplier. This is the share of your salary the pension replaces
Take that share of your final average salary to get your pension for a year
Divide by 12 to get your monthly payment
Divide the lump sum by the monthly payment. That's how many payments it takes to match it, with no investing
Round up to 267 whole months and add them to your starting age. This is the plain break-even age
Turn the 4% yearly return into a monthly rate, because the payments are monthly
Suppose you invest the lump sum and pay yourself $2,100.00 a month. The money lasts 632 months. After that, the pension is ahead
Total the payments from age 55 to age 95
Find what's left of the invested lump sum at age 95, if you paid yourself the same amount
8. Monthly pension: $4,275.00
Multiply your years of service by the multiplier. This is the share of your salary the pension replaces
Take that share of your final average salary to get your pension for a year
Divide by 12 to get your monthly payment
Divide the lump sum by the monthly payment. That's how many payments it takes to match it, with no investing
Round up to 94 whole months and add them to your starting age. This is the plain break-even age
Turn the 6% yearly return into a monthly rate, because the payments are monthly
Suppose you invest the lump sum and pay yourself $4,275.00 a month. The money lasts 126 months. After that, the pension is ahead
Total the payments from age 45 to age 80
Find what's left of the invested lump sum at age 80, if you paid yourself the same amount
9. Monthly pension: $4,125.00
Multiply your years of service by the multiplier. This is the share of your salary the pension replaces
Take that share of your final average salary to get your pension for a year
Divide by 12 to get your monthly payment
Divide the lump sum by the monthly payment. That's how many payments it takes to match it, with no investing
Round up to 134 whole months and add them to your starting age. This is the plain break-even age
Turn the 5% yearly return into a monthly rate, because the payments are monthly
Suppose you invest the lump sum and pay yourself $4,125.00 a month. The money lasts 193 months. After that, the pension is ahead
Total the payments from age 66 to age 80
Find what's left of the invested lump sum at age 80, if you paid yourself the same amount
10. Monthly pension: $2,970.00
Multiply your years of service by the multiplier. This is the share of your salary the pension replaces
Take that share of your final average salary to get your pension for a year
Divide by 12 to get your monthly payment
Divide the lump sum by the monthly payment. That's how many payments it takes to match it, with no investing
Round up to 219 whole months and add them to your starting age. This is the plain break-even age
Turn the 5% yearly return into a monthly rate, because the payments are monthly
Suppose you invest the lump sum and pay yourself $2,970.00 a month. The money lasts 547 months. After that, the pension is ahead
Total the payments from age 65 to age 120
Find what's left of the invested lump sum at age 120, if you paid yourself the same amount