(1)+3.52+
+48%(2)
×
+
(3)
÷(5﹣3.9×
)
(4)25﹣25×(5)1000÷32÷0.25÷0.125(6)38
﹣15.38+61.25﹣4.62.
脱式计算
0.24÷+0.24×5
×9.4+
×0.7﹣70%178×
777×9+37×1112.75÷[15×(2﹣)+2.5](4.8×7.5×8.1)÷(2.4×2.5×2.7)
3.8×4.5÷(3.2﹣2.95)+
+
+…+
.
计算,能简算的要简算
(1)4.82﹣5.2÷0.8×0.6(2)125×32(3)6760÷13+17×25
(4)57.5﹣4.25﹣15.75(5)×16.31﹣
×2.31.
计算(怎样简便就怎样算)=
=
=
x+
x=60.
直接写得数,看谁快又准.÷2= ;5﹣0.25+0.75= ; 9﹣0.09= ; 0.4×16×0.25= ;
﹣
+
= ; 4.5×102= ;23.9÷8≈ ;1÷
×
= ;
0.42﹣0.32= ; 13×(2+)= ; 7×
÷7×
= ; 0.9+99×0.9= .