题目内容

脱式计算。
(1)3.52+8.4+2.6 (2)42.24-6.24-3.76
(3)5.94+6.7+1.06+0.3 (4)4.92+3.27-4.92+3.73
(1)原式=3.52+(8.4+2.6)
                =3.52+11
                =14.52
(2)原式=42.24-(6.24+3.76)
                =42.24-10
                =32.24
(3)原式=(5.94+1.06)+(6.7+0.3)
                =7+7
                =14
(4)原式=(4.92-4.92)+(3.27+3.73)
                =0+7
                =7
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