脱式计算(能简算的要简算)1.(9.3×9/16-7.3×9/16)÷9/42.1/5×37%+0.63X20%+43%
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脱式计算(能简算的要简算)1.(9.3×9/16-7.3×9/16)÷9/42.1/5×37%+0.63X20%+43%
脱式计算(能简算的要简算)
1.(9.3×9/16-7.3×9/16)÷9/4
2.1/5×37%+0.63X20%+43%
脱式计算(能简算的要简算)1.(9.3×9/16-7.3×9/16)÷9/42.1/5×37%+0.63X20%+43%
第一题,原式=.(9.3-7.3)×9/16÷9/4=2×9/16÷9/4=2×(9/16÷9/4)=2×1/4=1/2
第二题,原式=0.2×0.37+0.63X0.2+0.43=0.2×(0.37+0.63)+0.43=
0.2×1+0.43=0.2+0.43=0.63
你好:
1. (9.3×9/16-7.3×9/16)÷9/4
=9/16×(9.3-7.3)÷9/4
=9/16×2×4/9
=1/2
2. 1/5×37%+0.63×20%+43
=1/5×(37%+0.63)+43
=1/5×1+43
=0.2+43
=43.2
1,(9.3×9/16-7.3×9/16)÷9/4
= (9.3×9/16-7.3×9/16)×4/9
= 9.3×9/16×4/9-7.3×9/16×4/9
= 9.3×1/4-7.3×1/4
= 2×1/4
= 2/1
2,, 1/5×37% 0.63×20% 43%
= 20%×37% 63%×20% 43%
= (63% 37%)×20% 43%
= 20% 43%
= 63%
1.
(9.3×9/16-7.3×9/16)÷9/4
=(9.3-7.3) x9/16÷9/4
=2x9/16÷9/4
=9/8X4/9
=1/2
2.
1/5×37%+0.63X20%+43%
=(37%+63%)x1/5+43%
=1x20%+43%
=0.63
希望对你有帮助。楼上回答是错的。