×25 and ×125 worksheet

Part A: Working out and filling in

1. 1. 66 × 4 × 25 = 6600

   66 × 4 × 25: multiply the easy pair first, 25 × 4 = 100, then 66 × 100 = 6600

2. 2. 25 × 71 × 4 = 7100

   25 × 71 × 4: multiply the easy pair first, 25 × 4 = 100, then 71 × 100 = 7100

3. 3. 70 × 4 × 25 = 7000

   70 × 4 × 25: multiply the easy pair first, 25 × 4 = 100, then 70 × 100 = 7000

4. 4. 25 × 14 × 4 = 1400

   25 × 14 × 4: multiply the easy pair first, 25 × 4 = 100, then 14 × 100 = 1400

5. 5. 95 × 25 × 4 = 9500

   95 × 25 × 4: multiply the easy pair first, 25 × 4 = 100, then 95 × 100 = 9500

6. 6. 2 × 8 × 125 = 2000

   2 × 8 × 125: multiply the easy pair first, 125 × 8 = 1000, then 2 × 1000 = 2000

7. 7. 125 × 3 × 8 = 3000

   125 × 3 × 8: multiply the easy pair first, 125 × 8 = 1000, then 3 × 1000 = 3000

8. 8. 8 × 8 × 125 = 8000

   8 × 8 × 125: multiply the easy pair first, 125 × 8 = 1000, then 8 × 1000 = 8000

9. 9. 25 × 4 × 50 = 5000

   25 × 4 × 50: multiply the easy pair first, 25 × 4 = 100, then 50 × 100 = 5000

10. 10. 25 × 4 × 98 = 9800

    25 × 4 × 98: multiply the easy pair first, 25 × 4 = 100, then 98 × 100 = 9800

11. 11. 4 × 73 × 25 = 7300

    4 × 73 × 25: multiply the easy pair first, 25 × 4 = 100, then 73 × 100 = 7300

12. 12. 25 × 68 × 4 = 6800

    25 × 68 × 4: multiply the easy pair first, 25 × 4 = 100, then 68 × 100 = 6800

Part B: Word problems

Marking: 2 for the working, 1 for the answer, 1 for the sentence.

1. 13. A hall's seats are in 12 blocks, each of 4 rows with 25 seats in a row. How many seats does the hall have? (Answer: 1200 seats)

   4 × 25 = 100; 12 × 4 × 25 = 1200

2. 14. A box holds 25 pencils, and a crate holds 4 boxes. A stationery shop gets 36 crates. How many pencils is that? (Answer: 3600 pencils)

   25 × 4 = 100; 25 × 4 × 36 = 3600

3. 15. A packet of biscuits weighs 125 g, and a box holds 8 packets. How many grams do 6 boxes weigh? (Answer: 6000 g)

   125 × 8 = 1000; 125 × 8 × 6 = 6000

4. 16. A hall's seats are in 6 blocks, each of 4 rows with 25 seats in a row. How many seats does the hall have? (Answer: 600 seats)

   4 × 25 = 100; 6 × 4 × 25 = 600

5. 17. A packet of biscuits weighs 125 g, and a box holds 8 packets. How many grams do 3 boxes weigh? (Answer: 3000 g)

   125 × 8 = 1000; 125 × 8 × 3 = 3000

6. 18. A box holds 25 pencils, and a crate holds 4 boxes. A stationery shop gets 19 crates. How many pencils is that? (Answer: 1900 pencils)

   25 × 4 = 100; 25 × 4 × 19 = 1900