Multiply two-digit numbers with an area model

Question 1

Use an area model to work out 15 × 13.

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Question 2

For 44 × 12, the area model has four parts: 40 × 10 = ?, 40 × 2 = 80, 4 × 10 = 40, 4 × 2 = 8. What is the missing part?

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Question 3

Use an area model to work out 24 × 14.

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Question 4

For 33 × 36, the area model has four parts: 30 × 30 = 900, 30 × 6 = 180, 3 × 30 = 90, 3 × 6 = ?. What is the missing part?

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Question 5

Use an area model to work out 29 × 23.

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Question 6

For 12 × 47, the area model has four parts: 10 × 40 = 400, 10 × 7 = 70, 2 × 40 = ?, 2 × 7 = 14. What is the missing part?

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Question 7

Use an area model to work out 16 × 20.

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Question 8

For 49 × 33, the area model has four parts: 40 × 30 = 1200, 40 × 3 = ?, 9 × 30 = 270, 9 × 3 = 27. What is the missing part?

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Question 9

Use an area model to work out 28 × 22.

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Question 10

For 36 × 12, the area model has four parts: 30 × 10 = 300, 30 × 2 = 60, 6 × 10 = 60, 6 × 2 = ?. What is the missing part?

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Question 11

Use an area model to work out 27 × 27.

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Question 12

For 19 × 29, the area model has four parts: 10 × 20 = ?, 10 × 9 = 90, 9 × 20 = 180, 9 × 9 = 81. What is the missing part?

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Question 13

Use an area model to work out 20 × 18.

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Question 14

For 31 × 41, the area model has four parts: 30 × 40 = 1200, 30 × 1 = 30, 1 × 40 = ?, 1 × 1 = 1. What is the missing part?

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Question 15

Use an area model to work out 36 × 18.

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Question 16

For 39 × 36, the area model has four parts: 30 × 30 = 900, 30 × 6 = 180, 9 × 30 = 270, 9 × 6 = ?. What is the missing part?

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