在小学阶段,数学学习中的计算问题是一个非常重要的组成部分,在计算中经常用到除法、比、分数、小数、百分数相互之间的变化。
除法除不尽(按四舍五入计算)
除法比分数小数百分除法比分数小数百分
1÷21:21/20.550%1÷31:31/30.3333%
1÷41:41/40.2525%2÷32:32/30.6767%
1÷51:51/50.220%1÷61:61/60.1717%
2÷52:52/50.440%5÷65:65/60.8383%
3÷53:53/50.660%1÷71:71/70.1414%
4÷54:54/50.880%2÷72:72/70.2929%
1÷81:81/80.12512.5%3÷73:73/70.4343%
3÷83:83/80.37537.5%4÷74:74/70.5757%
5÷85:85/80.62562.5%5÷75:75/70.7171%
7÷87:87/80.87587.5%6÷76:76/70.8686%
1÷101:101/100.110%1÷91:91/90.1111%
3÷103:103/100.330%2÷92:92/90.2222%
7÷107:107/100.770%4÷94:94/90.4444%
9÷109:109/100.990%5÷95:95/90.5656%
3÷23:23/21.5150%7÷97:97/90.7878%
5÷45:45/41.25125%8÷98:98/90.8989%
7÷57:57/51.4140%4÷34:34/31.33133%