4.8-4.8×0.5
=4.8×(1-0.5)
=4.8×0.5
=2.4
7.09×10.8-0.8×7.09
=7.09×(10.8-0.8)
=7.09×10
=70.9
简便运算 4.8-4.8×0.5和7.09×10.8-0.8×7.09 = = =
1个回答
相关问题
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(7.09-0.09)x10.8简便运算
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全部简便算:①(38.7－18.6÷3.1)×0.8 ②7.09×10.8－8×0.709 ③15.6×13.1－15.
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简便运算：7.29平方-2.71平方,2.8×8+7.6×8-0.4×8
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简便运算：0.9999×0.7+0.1111×2.7；36×1.09+1.2×67.3；48×1.08+1.2×56.8
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直接写出得数． 0.56×1000= 0.8×1.25= 0.8×0.09= 1÷0.25×4= 1.7÷100= 2.
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简便计算．0.28×1020.175÷0.25÷0.47.09×9.2+0.8×7.0911.8-2.08-3.724.
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简便计算．0.28×1020.175÷0.25÷0.47.09×9.2+0.8×7.0911.8-2.08-3.724.