几道简算题41.1/17×4/9+5/17×1/92.1/7×3/4+3/7×1/6+6/7×1/123.5/9×79又
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/23 18:41:52
几道简算题4
1.1/17×4/9+5/17×1/9
2.1/7×3/4+3/7×1/6+6/7×1/12
3.5/9×79又16/17+50×1/9+1/9×5/17
4.5/17×3/8+1/15×7/16+1/15×3又1/2
1.1/17×4/9+5/17×1/9
2.1/7×3/4+3/7×1/6+6/7×1/12
3.5/9×79又16/17+50×1/9+1/9×5/17
4.5/17×3/8+1/15×7/16+1/15×3又1/2
1.1/17×4/9+5/17×1/9
= 1/17×4/9+1/17×5/9
= 1/17×(4/9+5/9)
= 1/17
2.1/7×3/4+3/7×1/6+6/7×1/12
= 3/7×1/4+3/7×1/6+3/7×1/6
= 3/7×(1/4+1/6+1/6)
= 3/7×7/12
= 1/4
3.5/9×79又16/17+50×1/9+1/9×5/17
= 5/9×(179又16/17+10+1/17)
= 5/9×90
= 50
4.5/17×3/8+1/15×7/16+1/15×3又1/2
= 7/15×3/8+7/15×1/16+7/15×1/2
= 7/15×(3/8+1/16+1/2)
= 7/16
= 1/17×4/9+1/17×5/9
= 1/17×(4/9+5/9)
= 1/17
2.1/7×3/4+3/7×1/6+6/7×1/12
= 3/7×1/4+3/7×1/6+3/7×1/6
= 3/7×(1/4+1/6+1/6)
= 3/7×7/12
= 1/4
3.5/9×79又16/17+50×1/9+1/9×5/17
= 5/9×(179又16/17+10+1/17)
= 5/9×90
= 50
4.5/17×3/8+1/15×7/16+1/15×3又1/2
= 7/15×3/8+7/15×1/16+7/15×1/2
= 7/15×(3/8+1/16+1/2)
= 7/16
计算题10题:(1)-8又3/4-5又7/9+4又1/6-3又2/9
5道简算题(1)2+4又2/9-5又3/7(2)9又5/6*4.25+4又1/4/6(3)(3又5/12-1又3/7)-
小学的简便计算题41又1/3×3/4+51又1/4×4/5+61又1/5×5/6
计算题 7又2分之1-3又3分之1-(-6分之5).
数学计算题.1、9又19分之18×15 2、(-7分之2)÷(-4) 3、(42又7分之6)÷6
数学计算题:-2.5÷(-5/6)÷-3的绝对值=?(-1)÷(-4又2/3)×(2又1/7)=?
计算题 求大神~(-4又9分之7)-(-3又6分之1)-(+2又9分之2)+(-6又6分之1) 5.6+(-0.9)+4
简单计算题(简便计算):(5分之6+11分之9+1又7分之5)÷(11分之3+5分之2+7分之4
计算题 简算.1.20分之1X3又4分之3X20=2.5又7分之5X81又9分之4X10分之7-3.105又105分之9
一道计算题-5又5/27-3又1/8+1又1/8-1/4+2又2/27-8/9
脱式计算题:1.12又3分之2+15又4分之3+9又12分之7 2.4又2分之1-(4又4分之1-3又8分之3)
几道简算题1计算下面各题.1. 6.73-2 又8/17+(3.27-1又9/17)2.7又5/9-(3.8+1又5/9