72+28×108 24×125×7 402×[494÷(102﹣83)]
6.908﹣8×(73﹣46) 5.36×64﹣64+64×65 7.908﹣8×(73﹣46)
×60+8÷2
12×(
+
﹣
)4
﹣(1
+1
)
25×40%﹣7.5÷150%×〔
﹣(
+
)〕4×12.5×
×8.
计算下面各题.(能简便的用简便方法)÷
+
×
36×
+65×25%﹣1÷4
+
×
+
1743+2.56﹣743+7.44.
用你喜欢的方法计算.
0.125×32×2.5 6.7×0.9+3.3×0.9(﹣
+
)÷
18.7×98+18.7+18.7 0.65×14+87×65%﹣.
直接写出得数
2.2+3.58=0.23×400=400÷25÷8==1.9×2×0.5=
=
=
=0.9÷99×0.9=
=
(1)17690÷58×89﹣6759(2)7.35+2.65×(3.9﹣7.632÷2.4)
(3)36﹣8.325+21
﹣1
(4)27
×60+9
×96.