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算一算并选择正确的答案. ( ) 1. 3 × 7 = ( ) 2. 72

时间:2025-03-12 00:30:27

算一算并选择正确的答案。
( ) 1. 3 × 7 =

( ) 2. 72 - 38 =

( ) 3. 84 ÷ 2 =

( ) 4. 23 + 28 =

( ) 5. 42 - 29 =

A. thirty-four

B. fifty-one

C. thirteen

D. twenty-one

E. forty-two

试题答案

1. D 2. A 3. E 4. B 5. C