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用简便方法计算.3.7×4.5-4.4×3.70.25×0.25×43.84-1.9+0.16-1.1.

题目详情
用简便方法计算.
3.7×4.5-4.4×3.7
0.25×0.25×4
3.84-1.9+0.16-1.1.
▼优质解答
答案和解析
(1)3.7×4.5-4.4×3.7
=3.7×(4.5-4.4)
=3.7×0.1
=0.37;

(2)0.25×0.25×4
=0.25×(0.25×4)
=0.25×1
=0.25;

(3)3.84-1.9+0.16-1.1
=3.84+0.16-(1.9+1.1)
=4-3
=1.