口算题.
0.125×16= 3﹣1.06= 0.6÷6= 16.8﹣7=
11﹣=
﹣
= 1.01×0.2×0.1= 0.45×0=
0÷125= 9﹣9.875= 2
﹣0= 0.1+0.2×0.3=
+
÷
+
=
÷3+
×
=
计算下面各题,能简算的要简算
0.87×4.5﹣4.5×0.673.18﹣(0.33+1.18)
1.2+1.47÷0.71.76﹣[(0.74+0.26)÷0.8].
脱式计算,能简算得要简算.
5.45+0.56×7.42.5×0.89×425×16.7﹣25×0.7
7.6×995.6×10.22.5×3.2×1.25
9.6÷0.4×0.253.56×2.8﹣1.24×0.9(12.5+1.25)×8
(2.5×1.7)×412.5×8.80.89×100.1
0.25×0.8×4×0.1258.4×0.26+0.7431.7﹣0.5×0.7﹣1.65.
用简便方法计算.
8.37×7.2+8.37×2.8
12.5×3.9×0.8
1.3+2.9+8.7+0.1
9.6×10.1.
递等式计算(能简算的就简算).
(1)3.37+12.89+2.63
(2)513000÷125÷8
(3)39×26+26×61
(4)31.25﹣6.29﹣4.71
(5)130×(300﹣125÷25)
(6)2748÷[216÷(155﹣83)].
脱式计算(能简算的要简算)
12.03﹣22.78÷3.44.78×99+4.782.5×6.9×4
28.8÷1.2×0.66.8+3.2÷2.58.6×3.3+2.7×8.6.