Time & moneyAges 7-9

Working backwards from finish time

Count backwards in minutes from an activity’s finish time to find when it started. Review suitability for your learners before teaching.

New variation Try interactive challenge Browse templates

Age band:Ages 7-9 Ages 10-12

Choose “Save as PDF” to keep a copy. Use your browser’s paper setting for A4 or Letter.

Worksheet StudioPractice pack · Ages 7-9

Working backwards from finish time

Take your time. Show your thinking.

1. A countdown timer shows 8 minutes and 50 seconds remaining. How many seconds is that in total?
8 m · 50 s · Working backwards from fin…
2. A countdown timer shows 2 minutes and 15 seconds remaining. How many seconds is that in total?
2 m · 15 s · Working backwards from fin…
3. A countdown timer shows 1 minute and 35 seconds remaining. How many seconds is that in total?
1 m · 35 s · Working backwards from fin…
4. A countdown timer shows 7 minutes and 35 seconds remaining. How many seconds is that in total?
7 m · 35 s · Working backwards from fin…
5. A countdown timer shows 8 minutes and 35 seconds remaining. How many seconds is that in total?
8 m · 35 s · Working backwards from fin…
6. A countdown timer shows 7 minutes and 30 seconds remaining. How many seconds is that in total?
7 m · 30 s · Working backwards from fin…
7. A countdown timer shows 15 minutes and 20 seconds remaining. How many seconds is that in total?
15 m · 20 s · Working backwards from fin…
8. A countdown timer shows 7 minutes and 55 seconds remaining. How many seconds is that in total?
7 m · 55 s · Working backwards from fin…
9. A countdown timer shows 8 minutes and 10 seconds remaining. How many seconds is that in total?
8 m · 10 s · Working backwards from fin…
10. A countdown timer shows 14 minutes and 40 seconds remaining. How many seconds is that in total?
14 m · 40 s · Working backwards from fin…
11. A countdown timer shows 9 minutes and 40 seconds remaining. How many seconds is that in total?
9 m · 40 s · Working backwards from fin…
12. A countdown timer shows 5 minutes and 55 seconds remaining. How many seconds is that in total?
5 m · 55 s · Working backwards from fin…

12 questions · Seed 104733 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 7-9

Working backwards from finish time

Answers and reasoning. Review before teaching.

1. A countdown timer shows 8 minutes and 50 seconds remaining. How many seconds is that in total?
530 seconds
8 × 60 = 480 seconds, plus 50 seconds = 530 seconds.
2. A countdown timer shows 2 minutes and 15 seconds remaining. How many seconds is that in total?
135 seconds
2 × 60 = 120 seconds, plus 15 seconds = 135 seconds.
3. A countdown timer shows 1 minute and 35 seconds remaining. How many seconds is that in total?
95 seconds
1 × 60 = 60 seconds, plus 35 seconds = 95 seconds.
4. A countdown timer shows 7 minutes and 35 seconds remaining. How many seconds is that in total?
455 seconds
7 × 60 = 420 seconds, plus 35 seconds = 455 seconds.
5. A countdown timer shows 8 minutes and 35 seconds remaining. How many seconds is that in total?
515 seconds
8 × 60 = 480 seconds, plus 35 seconds = 515 seconds.
6. A countdown timer shows 7 minutes and 30 seconds remaining. How many seconds is that in total?
450 seconds
7 × 60 = 420 seconds, plus 30 seconds = 450 seconds.
7. A countdown timer shows 15 minutes and 20 seconds remaining. How many seconds is that in total?
920 seconds
15 × 60 = 900 seconds, plus 20 seconds = 920 seconds.
8. A countdown timer shows 7 minutes and 55 seconds remaining. How many seconds is that in total?
475 seconds
7 × 60 = 420 seconds, plus 55 seconds = 475 seconds.
9. A countdown timer shows 8 minutes and 10 seconds remaining. How many seconds is that in total?
490 seconds
8 × 60 = 480 seconds, plus 10 seconds = 490 seconds.
10. A countdown timer shows 14 minutes and 40 seconds remaining. How many seconds is that in total?
880 seconds
14 × 60 = 840 seconds, plus 40 seconds = 880 seconds.
11. A countdown timer shows 9 minutes and 40 seconds remaining. How many seconds is that in total?
580 seconds
9 × 60 = 540 seconds, plus 40 seconds = 580 seconds.
12. A countdown timer shows 5 minutes and 55 seconds remaining. How many seconds is that in total?
355 seconds
5 × 60 = 300 seconds, plus 55 seconds = 355 seconds.

12 questions · Seed 104733 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 7-9

Working backwards from finish time

Take your time. Show your thinking.

1. A countdown timer shows 8 minutes and 50 seconds remaining. How many seconds is that in total?
8 m · 50 s · Working backwards from fin…
2. A countdown timer shows 2 minutes and 15 seconds remaining. How many seconds is that in total?
2 m · 15 s · Working backwards from fin…
3. A countdown timer shows 1 minute and 35 seconds remaining. How many seconds is that in total?
1 m · 35 s · Working backwards from fin…
4. A countdown timer shows 7 minutes and 35 seconds remaining. How many seconds is that in total?
7 m · 35 s · Working backwards from fin…
5. A countdown timer shows 8 minutes and 35 seconds remaining. How many seconds is that in total?
8 m · 35 s · Working backwards from fin…
6. A countdown timer shows 7 minutes and 30 seconds remaining. How many seconds is that in total?
7 m · 30 s · Working backwards from fin…
7. A countdown timer shows 15 minutes and 20 seconds remaining. How many seconds is that in total?
15 m · 20 s · Working backwards from fin…
8. A countdown timer shows 7 minutes and 55 seconds remaining. How many seconds is that in total?
7 m · 55 s · Working backwards from fin…
9. A countdown timer shows 8 minutes and 10 seconds remaining. How many seconds is that in total?
8 m · 10 s · Working backwards from fin…
10. A countdown timer shows 14 minutes and 40 seconds remaining. How many seconds is that in total?
14 m · 40 s · Working backwards from fin…
11. A countdown timer shows 9 minutes and 40 seconds remaining. How many seconds is that in total?
9 m · 40 s · Working backwards from fin…
12. A countdown timer shows 5 minutes and 55 seconds remaining. How many seconds is that in total?
5 m · 55 s · Working backwards from fin…

12 questions · Seed 104733 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 7-9

Working backwards from finish time

Answers and reasoning. Review before teaching.

1. A countdown timer shows 8 minutes and 50 seconds remaining. How many seconds is that in total?
530 seconds
8 × 60 = 480 seconds, plus 50 seconds = 530 seconds.
2. A countdown timer shows 2 minutes and 15 seconds remaining. How many seconds is that in total?
135 seconds
2 × 60 = 120 seconds, plus 15 seconds = 135 seconds.
3. A countdown timer shows 1 minute and 35 seconds remaining. How many seconds is that in total?
95 seconds
1 × 60 = 60 seconds, plus 35 seconds = 95 seconds.
4. A countdown timer shows 7 minutes and 35 seconds remaining. How many seconds is that in total?
455 seconds
7 × 60 = 420 seconds, plus 35 seconds = 455 seconds.
5. A countdown timer shows 8 minutes and 35 seconds remaining. How many seconds is that in total?
515 seconds
8 × 60 = 480 seconds, plus 35 seconds = 515 seconds.
6. A countdown timer shows 7 minutes and 30 seconds remaining. How many seconds is that in total?
450 seconds
7 × 60 = 420 seconds, plus 30 seconds = 450 seconds.
7. A countdown timer shows 15 minutes and 20 seconds remaining. How many seconds is that in total?
920 seconds
15 × 60 = 900 seconds, plus 20 seconds = 920 seconds.
8. A countdown timer shows 7 minutes and 55 seconds remaining. How many seconds is that in total?
475 seconds
7 × 60 = 420 seconds, plus 55 seconds = 475 seconds.
9. A countdown timer shows 8 minutes and 10 seconds remaining. How many seconds is that in total?
490 seconds
8 × 60 = 480 seconds, plus 10 seconds = 490 seconds.
10. A countdown timer shows 14 minutes and 40 seconds remaining. How many seconds is that in total?
880 seconds
14 × 60 = 840 seconds, plus 40 seconds = 880 seconds.
11. A countdown timer shows 9 minutes and 40 seconds remaining. How many seconds is that in total?
580 seconds
9 × 60 = 540 seconds, plus 40 seconds = 580 seconds.
12. A countdown timer shows 5 minutes and 55 seconds remaining. How many seconds is that in total?
355 seconds
5 × 60 = 300 seconds, plus 55 seconds = 355 seconds.

12 questions · Seed 104733 · Age guidance, not curriculum certification