脱式计算.(能用简便方法计算用简便方法计算)
70.08﹣1.25﹣1.75 4.6+2.89+5.4+3.11
22×101 45×36+54×36+36
25×(4×27) 85×99+85.
用你喜欢的方法计算.
(1)35.87×2.15﹣2.15×34.87﹣2.15
(2)42.56﹣(12.56﹣2.87)
(3)1.1×9×1.1+1.1×1.1
(4)35.4×44.2﹣35.3×44.3.
直接写得数.
10÷0.01= 0.22+0.8= 10﹣2.05= 3.5×0.4= 4÷0.25=
0÷19.8= 0.2×0.05= 0.6×1.5= 1.36+2.87+3.64= 1.8×0.4×0.25=
怎么简便就怎么算:
794﹣198 68×99 6756﹣193﹣207
72×125 0.9+1.08+0.92+0.1 13.59﹣6.91﹣0.09.
能简便计算的要简便
③ 35.7﹣8.9﹣11.1+3.3 ②4.6÷2.5÷0.4 ③2.7×9.9
④2.56×1.7+1.44×1.7 ⑤(1﹣0.2)×[13﹣(3.12+5.28)].
脱式计算,能简算的要简算.
(1)99×0.625+0.625
(2)(53.76﹣17.49)÷1.8
(3)(0.8×7+4.56÷1.9)×12.5
(4)15.73﹣(2.17+0.73)﹣1.83
(5)51.6÷[(5.4﹣3.25)×0.8]
(6)2.22×3.8﹣0.4×4.44.
试题篮
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