Multiplying, dividing and mixed operations · Ages 9–10

Long multiplication worksheet

Part of: Multiplying and dividing by two digits; divisibility

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Multiplying, dividing and mixed operations · Ages 9–10

Numsprite
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Name:Date:Score:／48

Write each answer in the space. For word problems, show your working and write a sentence answer.

13.A dictionary has 299 pages. A library has 16 of them. How many pages is that altogether?
Working:
Answer:
14.A sports club buys 14 basketballs at $23 each and 29 footballs at $47 each. How many dollars must it pay altogether?
Working:
Answer:
15.A stadium stand has 13 rows of 21 seats. How many seats are in the stand?
Working:
Answer:
16.A stadium stand has 31 rows of 80 seats. How many seats are in the stand?
Working:
Answer:
17.Each pupil going on a trip pays $87. 37 pupils are going. How many dollars does the teacher collect?
Working:
Answer:
18.Each pupil going on a trip pays $37. 31 pupils are going. How many dollars does the teacher collect?
Working:
Answer:

Show the answers and working

Long multiplication worksheet: Answers and working

1. 151 × 16 = 2416
151 × 16: split 16 into 10 and 6, 151 × 10 = 1510, 151 × 6 = 906, 1510 + 906 = 2416
2. 86 × 13 = 1118
86 × 13: split 13 into 10 and 3, 86 × 10 = 860, 86 × 3 = 258, 860 + 258 = 1118
3. 17 × 17 = 289
17 × 17: split 17 into 10 and 7, 17 × 10 = 170, 17 × 7 = 119, 170 + 119 = 289
4. 13 × 20 = 260
13 × 20: 20 is 2 tens, 13 × 2 = 26, 13 × 20 = 260
5. 54 × 15 = 810
54 × 15: split 15 into 10 and 5, 54 × 10 = 540, 54 × 5 = 270, 540 + 270 = 810
6. 25 × 14 = 350
25 × 14: split 14 into 10 and 4, 25 × 10 = 250, 25 × 4 = 100, 250 + 100 = 350
7. 75 × 19 = 1425
75 × 19: split 19 into 10 and 9, 75 × 10 = 750, 75 × 9 = 675, 750 + 675 = 1425
8. 90 × 13 = 1170
90 × 13: split 13 into 10 and 3, 90 × 10 = 900, 90 × 3 = 270, 900 + 270 = 1170
9. 118 × 22 = 2596
118 × 22: split 22 into 20 and 2, 118 × 2 = 236, 118 × 20 = 2360, 118 × 2 = 236, 2360 + 236 = 2596
10. 12 × 35 = 420
12 × 35: split 35 into 30 and 5, 12 × 3 = 36, 12 × 30 = 360, 12 × 5 = 60, 360 + 60 = 420
11. 36 × 32 = 1152
36 × 32: split 32 into 30 and 2, 36 × 3 = 108, 36 × 30 = 1080, 36 × 2 = 72, 1080 + 72 = 1152
12. 290 × 22 = 6380
290 × 22: split 22 into 20 and 2, 290 × 2 = 580, 290 × 20 = 5800, 290 × 2 = 580, 5800 + 580 = 6380

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

13. A dictionary has 299 pages. A library has 16 of them. How many pages is that altogether? (Answer: 4784 pages)
299 × 16 = 4784
14. A sports club buys 14 basketballs at $23 each and 29 footballs at $47 each. How many dollars must it pay altogether? (Answer: 1685 dollars)
23 × 14 + 47 × 29 = 1685
15. A stadium stand has 13 rows of 21 seats. How many seats are in the stand? (Answer: 273 seats)
21 × 13 = 273
16. A stadium stand has 31 rows of 80 seats. How many seats are in the stand? (Answer: 2480 seats)
80 × 31 = 2480
17. Each pupil going on a trip pays $87. 37 pupils are going. How many dollars does the teacher collect? (Answer: 3219 dollars)
87 × 37 = 3219
18. Each pupil going on a trip pays $37. 31 pupils are going. How many dollars does the teacher collect? (Answer: 1147 dollars)
37 × 31 = 1147

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