初一100道数学计算题及答案.docx

文档介绍：×（8+10 ）
= ×8+ ×10
=10+=
9123- （ 123+ ）
=9123-123-
=9000-
=
×+ ×
= ×（+)
= ×3=
9999 ×1001
=9999 ×（1000+1 ）
=9999 ×1000+9999 ×1
=10008999
×- × ＋ ×
（ - ）× ＋ × = ×+ × ×（ ＋ ）
= ×10
=83
++
= （ + ） +
=10+
=
933-157-43
=933- （ 157+43 ）
=933-200
=733
4821-998
=4821-1000+2
=3823
I32 ×125 ×25
=4 ×8×125 ×25
（ 4 ×25 ）×（ 8 ×125 ）
=100 ×1000
=100000
9048 ÷268
= （ 2600+2600+2600+1248
）÷26
=2600 ÷26+2600 ÷26+2600 ÷26+1248 ÷269
=100+100+100+48
=348
2881 ÷ 43
= （ 1290+1591 ）÷ 434
=1290 ÷43+1591 ÷43
=30+37
× ×- × ×16
= × ×- × ×
= ×( ×- ×)
= ×(4 × ×- ×4×)
= ×(4 × ×2×- ×4 ×)
= ×(-)
= ×[4 × ×(-)]
= ×[4 × ×]
= ×(4 ×)
=4237
+18 ÷- ×
=+12-
=-
=
×8+ ×8-47
=52+28-47
=80-47
(80-) ×5 分之 2-
=-
=-
=
8 ×7 分之 4 ÷[1 ÷(-)]
=8 ×4/7 ÷[1 ÷]
=8 ×4/7 ÷4
=8/7
2700 ×（506 －499 ）÷900
=2700 ×7÷900
=18900 ÷900
=21
－（ － ）÷
= － ÷
= －
=10
1 ÷1 －1）÷ = （1－1）÷ =0 ÷ =0
＋（ 3 － ÷ ）×1 = ＋ ×1 = ＋ =
[-18]+29+[-52]+60= 19
[-3]+[-2]+[-1]+0+1+2= -3
[-301]+125+