1.用方程表示出下列数量间的等量关系。
________________________ ________________________
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答案:
(1)4x = 168
(2)b - a = 34
(1)4x = 168
(2)b - a = 34
2.用竖式计算。
3−1.03= 13.56+1.99= 7.51+0.9=
400×3.79= 0.87×1.11= 3.5×1.82=
9.4−0.15= 6.2×0.87= 4.22×250=
3−1.03= 13.56+1.99= 7.51+0.9=
400×3.79= 0.87×1.11= 3.5×1.82=
9.4−0.15= 6.2×0.87= 4.22×250=
答案:


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