早教吧 育儿知识 作业答案 考试题库 百科 知识分享

计算下列各题,能简算的要简算.1.25×3.2×0.40.8×24.5-9.53.5×0.7+5.5×0.7+0.77.8÷2.6+2.7×1.53.85×9.3+0.93×61.535.6-5.6×1.7

题目详情
计算下列各题,能简算的要简算.
1.25×3.2×0.4     0.8×24.5-9.5     3.5×0.7+5.5×0.7+0.7
7.8÷2.6+2.7×1.5        3.85×9.3+0.93×61.5      35.6-5.6×1.7
计算下列各题,能简算的要简算.
1.25×3.2×0.4     0.8×24.5-9.5     3.5×0.7+5.5×0.7+0.7
7.8÷2.6+2.7×1.5        3.85×9.3+0.93×61.5      35.6-5.6×1.7

1.25×3.2×0.4     0.8×24.5-9.5     3.5×0.7+5.5×0.7+0.7
7.8÷2.6+2.7×1.5        3.85×9.3+0.93×61.5      35.6-5.6×1.7
1.25×3.2×0.4     0.8×24.5-9.5     3.5×0.7+5.5×0.7+0.77.8÷2.6+2.7×1.5        3.85×9.3+0.93×61.5      35.6-5.6×1.71.25×3.2×0.4     0.8×24.5-9.5     3.5×0.7+5.5×0.7+0.71.25×3.2×0.4     0.8×24.5-9.5     3.5×0.7+5.5×0.7+0.77.8÷2.6+2.7×1.5        3.85×9.3+0.93×61.5      35.6-5.6×1.77.8÷2.6+2.7×1.5        3.85×9.3+0.93×61.5      35.6-5.6×1.7
▼优质解答
答案和解析
(1)1.25×3.2×0.4
=1.25×8×0.4×0.4
=(1.25×8)×(0.4×0.4)
=10×0.16
=1.6

(2)0.8×24.5-9.5
=19.6-9.5
=10.1

(3)3.5×0.7+5.5×0.7+0.7
=(3.5+5.5+1)×0.7
=10×0.7
=7

(4)7.8÷2.6+2.7×1.5
=3+4.05
=7.05

(5)3.85×9.3+0.93×61.5
=3.85×9.3+9.3×6.15
=(3.85+6.15)×9.3
=10×9.3
=93

(6)35.6-5.6×1.7
=35.6-9.52
=26.08