直接写得数.9.3+7= 13.52﹣4.5= 1.2×11= 5.2+16.3+4.8=0.18÷0.09= 5.1﹣2.6+4.9= 0.12×9+0.12= 13.6÷0.03×0.3=0.16÷4=
16.4+3.5+83.6+166.5.
下面各题,怎么简便就怎么算.13.8﹣+6.2﹣; ×+×;(+)×12+; 15.2﹣1.2÷0.16×0.84.
脱式计算.(能简算要简算)(1)1375+450÷18×25 (2)()÷2(3)3﹣112.5%+1 (4)7(5) (6)5.
计算,能用简便计算就用简便计算.(1)4.2﹣1.38+5.8﹣3.62(2)(3)(4)0.125×0.25×32(5)(6)99.8×98+99.8×102.
用简便方法计算9﹣(+) 1.8×+2.2×25% 6.9×99+6.9 67×1012.5×32×0.125 ﹣+﹣ 10000÷125÷8 105×(++)