2.25×4= 1.01﹣0.91= 1÷0.01= ÷
=
÷5.25=
+6.25= 0.74×100= 742+258= 7×
÷7×
= 10﹣3.2﹣5.8=
算一算,能简算的要简算.
(1)5.42×99(2)1.43×2.5+0.57×2.5
(3)0.93÷0.6÷0.5(4)6.8×25+0.32×4.2﹣8÷25.
怎样简便怎样算.
(1)2.04+1.96﹣0.35(2)20.78﹣5.4﹣4.6(3)25×32×125
(4)8.2×99+8.2(5)4×4.78×0.25(6)0.65×99
(7)21.36÷08﹣12.9(8)1.2×2.5+0.8×2.5(9)102×0.45.
脱式计算.
96÷(15.4﹣12.2)9÷[0.3×(8﹣6.5)]0.175÷0.25÷0.4
0.175÷0.25×40.36÷[(6.1﹣4.6)×0.8]3.6×0.4+1.2×5.
怎样算简便就怎样算.
6.71×0.52+4.8×0.6712.5×(3.5﹣1.65)×0.4102×4.5
6.25÷1.25÷0.88.3﹣2.63+2.73×1.5.
(能简算的用简算)
(1)3.72﹣(1.72+1.3)(2)208×7.3﹣20.8×63(3)15×888+32×0.125×0.25
(4)+
﹣
(5)
+
+
+
(6)
﹣(
﹣
)