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Select another way to show 29 × 17. Select all that apply. A (20 × 10) + (20 × 7) + (9 × 10) + (9 × 7) B (29 × 10) + (29 × 7) C (29 × 20) + (29 × 9) + (29 × 10) + (29 × 7) D (20 × 17) + (9 × 17) E (29 × 20) + (29 × 9)

1 Answer

6 votes

Answer:

options A, B and D are the correct answers

Explanation:

29 * 17 = 493

A:

(20 * 10) + (20 * 7) + (9 * 10) + (9 * 7)

= 200 + 140 + 90 + 63 = 493

B:

(29 * 10) + (29 * 7)

= 290 + 203 = 493

C:

(29 * 20) + (29 * 9) + (29 * 10) + (29 * 7)

= 508 + ... ≠ 493

D:

(20 * 17) + (9 * 17)

= 340 + 153 = 493

E:

(29 * 20) + (29 * 9)

= 580 + ... ≠ 493

thus, the correct options are A, B and D

User MartinJH
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