下列計算中,正確的是( )
2 + 3 = 5 | 2 + 3 = 3 3 |
15 ÷ 5 × 3 = 15 5 × 3 = 9 = 3 | ( 1 + 3 ) ( 2 - 3 ) = 1 - 3 = - 2 |
【考點】實數的運算.
【答案】C
【解答】
【點評】
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發布:2024/6/14 8:0:9組卷:84引用:6難度:0.9
2 + 3 = 5 | 2 + 3 = 3 3 |
15 ÷ 5 × 3 = 15 5 × 3 = 9 = 3 | ( 1 + 3 ) ( 2 - 3 ) = 1 - 3 = - 2 |