初一100道数学计算题及答案..pdf
《初一100道数学计算题及答案..pdf》由会员分享,可在线阅读,更多相关《初一100道数学计算题及答案..pdf(7页珍藏版)》请在三一文库上搜索。
1、1.25 (8+10 ) =1.25 8+1.25 10 =10+12.5=22.5 9123- ( 123+8.8 ) =9123-123-8.8 =9000-8.8 =8991.2 1.24 8.3+8.3 1.76 =8.3 (1.24+1.76) =8.3 3=24.9 9999 1001 =9999 (1000+1 ) =9999 1000+9999 1 =10008999 14.8 6.3-6.3 6.5 8.33.7 = (14.8-6.5 )6.38.3 3.7 =8.3 6.3+8.3 3.7 8.3 (6.3 3.7 ) =8.3 10 =83 1.24+0.78+8.76
2、 = (1.24+8.76)+0.78 =10+0.78 =10.78 933-157-43 =933- (157+43 ) =933-200 =733 4821-998 =4821-1000+2 =3823 I32 125 25 =4 8125 25 = (425)(8125 ) =100 1000 =100000 9048 268 = (2600+2600+2600+1248)26 =2600 26+2600 26+260026+1248 269 =100+100+100+48 =348 2881 43 = (1290+1591) 434 =1290 43+1591 43 =30+37 3
3、.2 42.3 3.75-12.5 0.423 16 =3.2 42.3 3.75-1.25 42.3 1.6 =42.3 (3.2 3.75-1.25 1.6) =42.3 (40.8 3.75-1.25 40.4) =42.3 (40.4 2 3.75-1.25 40.4) =42.3 (4x0.4x7.5-1.25x4x0.4) =42.3 40.4 (7.5-1.25) =42.3 40.4 6.25 =42.3 (42.5) =4237 1.8+18 1.5-0.5 0.3 =1.8+12-0.15 =13.8-0.15 =13.65 6.5 8+3.5 8-47 =52+28-47
4、 =80-47 (80-9.8) 5 分之 2-1.32 =70.2X2/5-1.32 =28.08-1.32 =26.76 8 7 分之 4 1 (3.2-2.95) =8 4/7 1 0.25 =8 4/7 4 =8/7 2700 (506 499 )900 =2700 7900 =18900 900 =21 33.02 ( 148.4 90.85 )2.5 =33.02 57.55 2.5 =33.02 23.02 =10 (1 11)5.1 = (11)5.1 =0 5.1 =0 18.1 ( 30.299 0.23 )1 =18.1 1.7 1 =18.1 1.7 =19.8 -18
5、+29+-52+60= 19 -3+-2+-1+0+1+2= -3 -301+125+301+-75= 50 -1+-1/2+3/4+-1/4= -1 -7/2+5/6+-0.5+4/5+19/6= 1.25 -26.54+-6.14+18.54+6.14= -8 1.125+-17/5+-1/8+-0.6= -3 -98+76+(-87)*2356+(-75)-(7)-(8+4+3) 5+21*8/2-6-59 68/21-8-11*8+61 -2/9-7/9-56 4.6-(-3/4+1.6-4-3/4) 1/2+3+5/6-7/12 2/3-4-1/4*(-0.4)/1/3+2 22+(
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 初一 100 数学 算题 答案
链接地址:https://www.31doc.com/p-4994526.html