题目内容

计算:
(1)×3.5+5.5×80%+0.8 (2)(8.8 - 23.4×)÷ (3)1.5×10.6 - 12.06+2.4
(4)-(÷+ (5)×(11+44)+÷ (6)×0.25+0.375×
(1)原式=0.8×3.5+5.5×0.8+0.8
                =0.8×(3.5+5.5+1)
                =8
(2)原式=(8.8 - 7.8)÷
                =1÷
                =
(3)原式=15.9 - 12.6+2.4
                =3.84+2.4
                =6.24
(4)原式= - (+
                =-
                =
(5)原式=×55+÷
                =10+15
                =25
(6)原式=(+)×
                =1×
                =
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