直接写得数:
24÷8= 46÷5= 86÷9= 46+35=
370﹣80= 40+500= 473﹣300= 603+97=
7×6= 300﹣75= 80+123= 57÷6=
0.46×7.5+0.46×2.5
3﹣7.14÷3.5×1.05
9.9×8.6+0.86
[20﹣(90.75÷6.6+2.25)]×11.6.
7.02×900×0.6
0.035÷0.7÷0.5
13.6﹣13.6×0.7
5.62+3.1×0.6+3.38
(25﹣1.25×5)÷2.5
8.1×0.3+1.8×0.3+0.03.
199×0.612.5×3.7+4.3×2.50.8×62.3×12.5
5.2×10.10.25×13.7×0.42.5×40.4.
(1)60.28+0.72×4.3
(2)6.37﹣0.37×16
(3)3.8×99
(4)2.5×9×0.4×1.1
(5)2.6×(10.6﹣9.72)
(6)1.25×888.
脱式计算(能简算的写出主要简算过程).
①40.5﹣2.6×7.8
②80.52÷6.6+2.48
③2.5×3.6+6.4×2.5
④3.2×(3.9÷0.26+1.5)