初中数学计算题强化训练
一、有理数的加、减混和运算
1.(-0.7)+(-0.4)+(-0.3)+0.5 2.( -3.2)+(-)+(4)+(-)
3.(+15)+(-20)+(+28)+(-10)+(-5)+(-7)
4.(-3.25)+3.75-+2.5+3+(-4) 5.-2.6+[-1.4+8-(-3)]+4
6.(-2)+(+3)+(-3)+(+2)+(-1)+(+1)
7.(-)-(-1)-(-1)-(+1.75) 8.2-(-8)+(-2)+0.25-1.5-2.75
9.(-)-(-2)-(+)-(-) 10. -1-(-)-(+)
11.-32-[5+(-3)+(-5)+(-2)]12.2-
13141714175133119--(-)-(-)-3 1215151220135313123213342334121456155614341235232335142534121313.2-
5111117-11-{-[-(+)]}-4 14.5-3.7-(-7)-(-4)+3+3.7 1223468815.|-0.25|+(-3)-(-0.75)+|-0.125|+
16.-(+0.5)-(-3)+2.75-(+7) 17.-|--(+)|-|-|-|-|
18.(-1)-(25.85)-(+1)-(-7.2)-(+25.85)-(-0.25)
19.|3-4|+(-5-8)-|-1+5|-(5-20) 20.1-1+-(-0.6)-(-3)
21.1-[-1-(-)-5+]+|4| 22、(???
??3223、?÷(?)?×(-4)2 24、-12-?2?(1??0.5)????3?(?3)??
??79231513147814121323143412342325433537473571 )÷49123613
25. 13?(?)??(?) 26.(?17)?(?6.25)?(?8)?(?0.75)?22
563456712341214
二、有理数的乘、除、乘方混和运算
1.(-3)2 2.-32 3.(-3)3 4.-33 5.(-)2 6.(-)3 7.-3×42
8.(-3×4)
12.-0.1×(-0.1)3 13.-2×(-0.1)3-(-0.2)2+(-0.8)
14.-62×(-1)2-32÷(-1)3×(-3)
15.(-2)2-(-52)×(-1)5-24÷(-3)×(-)4
16.-2{[-3+(1-1.2×)÷(-2)]÷2} 17.-32+(-2)2-(-2)3+|(-2)2|
18.-23-[(-3)2-22×-8.5]÷(-)2 19.-32×23 20.(-3)2·(-2)3
21.-2×3
2
2
23239.-3×2
23
10.(-3)×(-2)
23
2411.-
31212125612141222.(-2×3)
2
2223 22 2323.(-)24.-()25.- 26. 2333(?3)