简便运算 4.8-4.8×0.5和7.09×10.8-0.8×7.09 = = =
1个回答
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
相关问题
(7.09-0.09)x10.8简便运算
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.
简便运算:7.29平方-2.71平方,2.8×8+7.6×8-0.4×8
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
7.2×5.4-3.6×0.8简便运算,脱式
4×0.8×12.5×0.2简便运算
0.125+3.7×1/8+1/8×5.3 简便运算
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.
简便计算.0.28×1020.175÷0.25÷0.47.09×9.2+0.8×7.0911.8-2.08-3.724.
简便计算.0.28×1020.175÷0.25÷0.47.09×9.2+0.8×7.0911.8-2.08-3.724.