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(1)3.68+7.65-2.68(2)6.02+5.18+4.3(3)9.8-2.45-3.55(4)38.02+12.5+0.98(5)74.3-18.65+5.7-1.35(6)35.6-1.8-15.6-7.2
题目详情
(1)3.68+7.65-2.68 | (2)6.02+5.18+4.3 |
(3)9.8-2.45-3.55 | (4)38.02+12.5+0.98 |
(5)74.3-18.65+5.7-1.35 | (6)35.6-1.8-15.6-7.2 |
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答案和解析
(1)3.68+7.65-2.68 =1+7.65 =8.65 | (2)6.02+5.18+4.3 =11.2+4.3 =15.5 |
(3)9.8-2.45-3.55 =9.8-6 =3.8 | (4)38.02+12.5+0.98 =39+12.5 =51.5 |
(5)74.3-18.65+5.7-1.35 =80-20 =60 | (6)35.6-1.8-15.6-7.2 =20-9 =11 |
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