问题 计算题
怎样简便就怎样算。
(1)6.3+10.5+0.7(2)50.5-6.64-3.36
(3)8.36+(9.7-2.36)(4)2.8+3.05+2.2+0.95
(5)9.15-(1.15-0.98)(6)18.7-(2.7+0.98)
(7)6.34-0.18-1.82+6.66(8)3.789+1.27-3.789+0.73
答案

(1)原式=6.3+0.7+10.5

                =17.5(2)原式=50.5-(6.64+3.36)

                = 40.5

(3)原式=8.36-2.36+9.7

                =15.7(4)原式=2.8+2.2+(3.05+0.95)

                =9

(5)原式=9.15-1.15+0.98

                =8.98(6)原式=18.7-2.7-0.98

                =15.02

(7)原式=6.34+6.66-(0.18+1.82)

                =11(8)原式=3.789-3.789+(1.27+0.73)

                =2

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