直接写得数:
1.25×8= 5×2.4= 0.36÷3.6= 5.6+4.04= 4.6×0.1=
72.5÷0.01= 0.8×0.05= 6.04﹣0.4=1÷4= 48.9﹣(8.9+4.96)= 27.5×11÷27.5×4=
脱式计算.(能简算的要简算)
6.8×0.75÷0.5 13.5÷2.5﹣2.75 0.125×0.25×32 0.9+9.9+99.9+0.3.
用自己喜欢的方法计算下面各题.
1.28+0.86+38.72 0.45÷0.6÷0.5 32×0.25×1.25
0.78÷0.13×0.2 13.6×9+40.6÷2 1.08×0.8÷0.27.
口算我最行.
0.25×2= 89.3×0.6= 5÷0.25= 6.5×6.7+3.5×6.7=
9.6÷32= 65÷1.3= 0.28÷4= 50×7.89×0.2=
1÷4= 28÷0.02= 28÷0.5= 0.4×3.2×2.5=
用递等式计算.(能简算的要写出简算过程)
(1)1.25×3.2×0.25 (2)6.4×0.27+3.6×0.27
(3)3.84﹣0.84×5÷1.5 (4)2.5×0.99
(5)8.19+0.5×(4.36﹣2.74) (6)1.8×2.48+1.52×1.8﹣0.5
(7)[(6﹣4.2)×2.5]÷2.5×1 (8)4.02÷[(1﹣0.4)÷0.1].
37.2×99+37.2= 25×4÷0.25×4= 0.9×7+10.7=
9÷5﹣1.9÷5﹦ 6.8﹣2.4÷3= 0.6÷0.3+0.5=
1.9+5.1÷51= 12﹣0.05×4= 1.8÷0.9×0.5=
1×0.01÷0.1= 7.2﹣1.2+6.7=
计算.(怎样简便怎样算).
5.64﹣2.4÷0.48 12.8+10.8÷45 13.2÷8÷1.25
(70.8﹣67.55)÷0.25 1.63+4.19+2.37 2.16×5.6+4.4×2.16.
怎样简便怎样算.
(1)0.625×(8.3﹣2.5×0.12) (2)3÷﹣÷3 (3)3098+3098×99
(4)6.3×8.7+8.7×3.7 (5)2.5×1.25×32 (6)﹣﹣.
能简便的要简便计算
2.9×1.4+2×0.16 200﹣(3.05+7.1)×18 2.5×32×1.25
(2.44﹣1.8)÷0.4×20 48×10.1 3.2×19+3.2.
试题篮
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