Multiplying, dividing and mixed operations · Ages 9–10
×9 and ×99 worksheet
Part of: The distributive property and mixed operations
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×9 and ×99 worksheet
Multiplying, dividing and mixed operations · Ages 9–10
Numsprite
numsprite.com
Name:Date:Score:／48
Write each answer in the space. For word problems, show your working and write a sentence answer.
Part A: Working out and filling in (2 marks each)
1.71 × 99
Answer:
2.81 × 99
Answer:
3.64 × 9
Answer:
4.13 × 99
Answer:
5.14 × 9
Answer:
6.73 × 9
Answer:
7.27 × 99
Answer:
8.62 × 99
Answer:
9.92 × 99
Answer:
10.84 × 99
Answer:
11.70 × 9
Answer:
12.49 × 99
Answer:
Part B: Word problems (4 marks each)
13.Each box holds 9 egg tarts. A bakery makes 71 boxes. How many egg tarts is that?
Working:
Answer:
14.Sports shirts cost $99 each. A sports club buys 28 for its basketball team. How many dollars must it pay?
Working:
Answer:
15.Boxes of chocolates cost $99 each. Ka-lok's mum buys 6 boxes and pays $600. How much change should she get, in dollars?
Working:
Answer:
16.Each box holds 9 egg tarts. A bakery makes 59 boxes. How many egg tarts is that?
Working:
Answer:
17.Boxes of chocolates cost $99 each. Ka-yan's mum buys 6 boxes and pays $600. How much change should she get, in dollars?
Working:
Answer:
18.Sports shirts cost $99 each. A sports club buys 54 for its basketball team. How many dollars must it pay?
Working:
Answer:
Show the answers and working
×9 and ×99 worksheet: Answers and working
Part A: Working out and filling in
1. 71 × 99 = 7029
71 × 99: ×99 is ×100 minus one lot, 71 × 100 = 7100, 7100 − 71 = 7029
2. 81 × 99 = 8019
81 × 99: ×99 is ×100 minus one lot, 81 × 100 = 8100, 8100 − 81 = 8019
3. 64 × 9 = 576
64 × 9: ×9 is ×10 minus one lot, 64 × 10 = 640, 640 − 64 = 576
4. 13 × 99 = 1287
13 × 99: ×99 is ×100 minus one lot, 13 × 100 = 1300, 1300 − 13 = 1287
5. 14 × 9 = 126
14 × 9: ×9 is ×10 minus one lot, 14 × 10 = 140, 140 − 14 = 126
6. 73 × 9 = 657
73 × 9: ×9 is ×10 minus one lot, 73 × 10 = 730, 730 − 73 = 657
7. 27 × 99 = 2673
27 × 99: ×99 is ×100 minus one lot, 27 × 100 = 2700, 2700 − 27 = 2673
8. 62 × 99 = 6138
62 × 99: ×99 is ×100 minus one lot, 62 × 100 = 6200, 6200 − 62 = 6138
9. 92 × 99 = 9108
92 × 99: ×99 is ×100 minus one lot, 92 × 100 = 9200, 9200 − 92 = 9108
10. 84 × 99 = 8316
84 × 99: ×99 is ×100 minus one lot, 84 × 100 = 8400, 8400 − 84 = 8316
11. 70 × 9 = 630
70 × 9: ×9 is ×10 minus one lot, 70 × 10 = 700, 700 − 70 = 630
12. 49 × 99 = 4851
49 × 99: ×99 is ×100 minus one lot, 49 × 100 = 4900, 4900 − 49 = 4851
Part B: Word problems
Marking: 2 for the working, 1 for the answer, 1 for the sentence.
13. Each box holds 9 egg tarts. A bakery makes 71 boxes. How many egg tarts is that? (Answer: 639 egg tarts)
10 × 71 − 71 = 639
14. Sports shirts cost $99 each. A sports club buys 28 for its basketball team. How many dollars must it pay? (Answer: 2772 dollars)
100 × 28 − 28 = 2772
15. Boxes of chocolates cost $99 each. Ka-lok's mum buys 6 boxes and pays $600. How much change should she get, in dollars? (Answer: 6 dollars)
99 × 6 = 594; 600 − 99 × 6 = 6
16. Each box holds 9 egg tarts. A bakery makes 59 boxes. How many egg tarts is that? (Answer: 531 egg tarts)
10 × 59 − 59 = 531
17. Boxes of chocolates cost $99 each. Ka-yan's mum buys 6 boxes and pays $600. How much change should she get, in dollars? (Answer: 6 dollars)
99 × 6 = 594; 600 − 99 × 6 = 6
18. Sports shirts cost $99 each. A sports club buys 54 for its basketball team. How many dollars must it pay? (Answer: 5346 dollars)
100 × 54 − 54 = 5346
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