7.8÷1.17×3.3的简便算法·
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7.8÷1.17×3.3的简便算法·
7.8÷1.17×3.3
=7.8×3.3/1.17
=3.9×2×3.3/3.9*0.3
=22
[37.85-(7.85 6.4)] ×30 156×[(17.7-7.2)÷3] (947-59910道简便运算 8.5*99 8.5 (25*8)*(125*4) 3*0.9 3*0.1 2
7.8÷1.17×3.3的简便算法·
7.8÷1.17×3.3
=7.8×3.3/1.17
=3.9×2×3.3/3.9*0.3
=22
[37.85-(7.85 6.4)] ×30 156×[(17.7-7.2)÷3] (947-59910道简便运算 8.5*99 8.5 (25*8)*(125*4) 3*0.9 3*0.1 2