(1)1375+625÷25×8
(2)32÷
﹣17.5+2.5
(3)1
×
+2
×
+
(4)3.7÷[(4
﹣2.9)÷(
÷0.4)]
(5)(3﹣1.125+1
)
(6)(
+
+…+
)(1+
+…+
)﹣(1+
+…+
)(
+
+…+
)
(1)206×18+292
(2)14.4÷0.2×3
(3)
(4)
(5)2005×20062006﹣2006×20052005
(6)2006﹣2005+2004﹣2003+2002﹣2001+…+4﹣3+2﹣1.
62.8×19﹣8×62﹣62 3.64×[1÷(2﹣2.09)]
1.9﹣1.9×(1.9﹣1.9)(1﹣1%×70)÷0.32O
脱式计算
798+10570÷35
1.8﹣1÷(0.75+
)×
÷(
÷
)
1735+4500÷18×15
3.8×4.5÷(3.2﹣2.95)
(
+
)÷
+
×9.4+
×30%
(
+
)×15×17.