75×4.67+52.3×7.5+7.
4个回答
75×4.67+52.3×7.5+7.5
=7.5×46.7+52.3×7.5+7.5
=7.5×(46.7+52.3+1)
=7.5×100
=750
【 运用小数的移位以及加法的结合运算 】
相关问题
75*4.67+52.3*7.5+7.5
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下面各题怎样简便就怎样算.(1)3.7×99+3.7 (2)[3/4]×7.7+3.3×0.75-75% (3)5.93
①3/4×7/8÷0.75 ②(2/5-3/8)×40 ③2/7-9/16×2/7
1+2+3+4+5+6+7+8+9+10×1×2×3×4×5×67×8×9×10=