版权说明：本文档由用户提供并上传，收益归属内容提供方，若内容存在侵权，请进行举报或认领
文档简介
四年级脱式计算题
138×25×4/(13×125)×(3×8)/(12+24+80)×50
Tosimplifythisexpression,wecanfirstsimplifythetermsinsideeachsetofparentheses.Wecanalsosimplify13×125to1625and3×8to24.Thenwecansimplifythefractionbydividingthenumeratoranddenominatorby24.Thisgivesus:
138×5/(1625)×1/29×50
Nowwecansimplifyfurtherbycancelingoutthe5and25inthenumeratoranddenominator,respectively.Thisgivesus:
6/65×50
Finally,wecansimplifybydividing6by13andmultiplyingby50.Thisgivesus:
23.08
79×42+79+79×57
Tosimplifythisexpression,wecanfirstsimplify79×57to4503.Thenwecanadd79and79×42toget:
4503+3321
Thisgivesus:
7824
25×32×125
Tosimplifythisexpression,wecanfirstsimplify25×32to800.Thenwecanmultiplyby125toget:
100000
178×101-178
Tosimplifythisexpression,wecansimplysubtract178from178×101.Thisgivesus:
17900
83×102-83×2
Tosimplifythisexpression,wecanfactorout83toget:
83(102-2)
Nowwecansimplify102-2to100.Thisgivesus:
8300
84×36+64×84
Tosimplifythisexpression,wecanfactorout4and84toget:
4(21×9+16×21)
Nowwecansimplify21×9to189and16×21to336.Thisgivesus:
4(525)
Finally,wecanmultiply4by525toget:
2100
98×199
Tosimplifythisexpression,wecansimplymultiply98by199.Thisgivesus:
19402
25×(24+16)
Tosimplifythisexpression,wecanfirstsimplify24+16to40.Thenwecanmultiply25by40toget:
1000
32×(25+125)
Tosimplifythisexpression,wecanfirstsimplify25+125to150.Thenwecanmultiply32by150toget:
4800
75×99+75
Tosimplifythisexpression,wecanfactorout75toget:
75(99+1)
Nowwecansimplify99+1to100.Thisgivesus:
7500
123×18-123×2
Tosimplifythisexpression,wecanfactorout123toget:
123(18-2)
Nowwecansimplify18-2to16.Thisgivesus:
1968
178×99+178
Tosimplifythisexpression,wecanfactorout178toget:
178(99+1)
Nowwecansimplify99+1to100.Thisgivesus:
17800
102×76-58×98
Tosimplifythisexpression,wecansimplymultiplyeachpairofnumbersandthensubtract.Thisgivesus:
7756-5684
Thisgivesus:
2072
75×99+2×75
Tosimplifythisexpression,wecanfactorout75toget:
75(99+2)
Nowwecansimplify99+2to101.Thisgivesus:
7575
123×18-123×3+85×123
Tosimplifythisexpression,wecanfactorout123toget:
123(18-3+85)
Nowwecansimplify18-3+85to100.Thisgivesus:
12300
88×125
Tosimplifythisexpression,wecansimplymultiply88by125.Thisgivesus:
11000
37.4-(8.6+7.24-6.6)
Tosimplifythisexpression,wecanfirstsimplifythetermsinsidetheparentheses.Thisgivesus:
37.4-(9.84)
Nowwecansubtract9.84from37.4.Thisgivesus:
27.56
156×107-7729
Tosimplifythisexpression,wecansimplymultiply156by107andthensubtract7729.Thisgivesus:
16592
360÷[(12+6)×5]
Tosimplifythisexpression,wecanfirstsimplify12+6to18.Thenwecanmultiply18by5toget:
90
Nowwecandivide360by90toget:
4
500×6-(50×2-80)
Tosimplifythisexpression,wecanfirstsimplify50×2to100.Thenwecansubtract100from80toget:
-20
Nowwecansimplify500×6to3000.Finally,wecanadd-20to3000toget:
2980
(45+38-16)×24
Tosimplifythisexpression,wecanfirstsimplify45+38to83.Thenwecansimplify83-16to67.Finally,wecanmultiply67by24toget:
1608
[64-(87-42)]×15
Tosimplifythisexpression,wecanfirstsimplify87-42to45.Thenwecansimplify64-45to19.Finally,wecanmultiply19by15toget:
285
[49-28]÷7
Tosimplifythisexpression,wecanfirstsimplify49-28to21.Thenwecandivide21by7toget:
3
158+242+138
Tosimplifythisexpression,wecansimplyaddthethreenumberstogether.Thisgivesus:
538
375+219+381+225
Tosimplifythisexpression,wecansimplyaddthefournumberstogether.Thisgivesus:
1200
(181+2564)+2719
Tosimplifythisexpression,wecanfirstsimplify181+2564to2745.Thenwecanadd2745to2719toget:
5464
(12+24)×50
Tosimplifythisexpression,wecanfirstsimplify12+24to36.Thenwecanmultiply36by50toget:
1800
84×36+64×84
Tosimplifythisexpression,wecanfactorout4and84toget:
4(21×9+16×21)
Nowwecansimplify21×9to189and16×21to336.Thisgivesus:
4(525)
Finally,wecanmultiply4by525toget:
2100
75×99+2×75
Tosimplifythisexpression,wecanfactorout75toget:
75(99+2)
Nowwecansimplify99+2to101.Thisgivesus:
7575
83×102-83×2
Tosimplifythisexpression,wecanfactorout83toget:
83(102-2)
Nowwecansimplify102-2to100.Thisgivesus:
8300
25×(24+16)
Tosimplifythisexpression,wecanfirstsimplify24+16to40.Thenwecanmultiply25by40toget:
1000
178×99+178
Tosimplifythisexpression,wecanfactorout178toget:
178(99+1)
Nowwecansimplify99+1to100.Thisgivesus:
17800
125×(33-1)
Tosimplifythisexpression,wecanfirstsimplify33-1to32.Thenwecanmultiply125by32toget:
4000
156×107-7729
Tosimplifythisexpression,wecansimplymultiply156by107andthensubtract7729.Thisgivesus:
16592
37.4-(8.6+7.24-6.6)
Tosimplifythisexpression,wecanfirstsimplifythetermsinsidetheparentheses.Thisgivesus:
37.4-(9.84)
Nowwecansubtract9.84from37.4.Thisgivesus:
27.56
360÷[(12+6)×5]
Tosimplifythisexpression,wecanfirstsimplify12+6to18.Thenwecanmultiply18by5toget:
90
Nowwecandivide360by90toget:
4
500×6-(50×2-80)
Tosimplifythisexpression,wecanfirstsimplify50×2to100.Thenwecansubtract100from80toget:
-20
Nowwecansimplify500×6to3000.Finally,wecanadd-20to3000toget:
2980
(45+38-16)×24
Tosimplifythisexpression,wecanfirstsimplify45+38to83.Thenwecansimplify83-16to67.Finally,wecanmultiply67by24toget:
1608
[64-(87-42)]×15
Tosimplifythisexpression,wecanfirstsimplify87-42to45.Thenwecansimplify64-45to19.Finally,wecanmultiply19by15toget:
285
[49-28]÷7
Tosimplifythisexpression,wecanfirstsimplify49-28to21.Thenwecandivide21by7toget:
3
156×107-7729
Tosimplifythisexpression,wecansimplymultiply156by107andthensubtract7729.Thisgivesus:
16592
360÷[(12+6)×5]
Tosimplifythisexpression,wecanfirstsimplify12+6to18.Thenwecanmultiply18by5toget:
90
Nowwecandivide360by90toget:
4
500×6-(50×2-80)
Tosimplifythisexpression,wecanfirstsimplify50×2to100.Thenwecansubtract100from80toget:
-20
Nowwecansimplify500×6to3000.Finally,wecanadd-20to3000toget:
2980
(45+38-16)×24
Tosimplifythisexpression,wecanfirstsimplify45+38to83.Thenwecansimplify83-16to67.Finally,wecanmultiply67by24toget:
1608
[64-(87-42)]×15
Tosimplifythisexpression,wecanfirstsimplify87-42to45.Thenwecansimplify64-45to19.Finally,wecanmultiply19by15toget:
285
[49-28]÷7
Tosimplifythisexpression,wecanfirstsimplify49-28to21.Thenwecandivide21by7toget:
3
158+242+138
Tosimplifythisexpression,wecansimplyaddthethreenumberstogether.Thisgivesus:
538
375+219+381+225
Tosimplifythisexpression,wecansimplyaddthefournumberstogether.Thisgivesus:
1200
(181+2564)+2719
Tosimplifythisexpression,wecanfirstsimplify181+2564to2745.Thenwecanadd2745to2719toget:
5464
(12+24)×50
Tosimplifythisexpression,wecanfirstsimplify12+24to36.Thenwecanmultiply36by50toget:
1800
84×36+64×84
Tosimplifythisexpression,wecanfactorout4and84toget:
4(21×9+16×21)
Nowwecansimplify21×9to189and16×21to336.Thisgivesus:
4(525)
Finally,wecanmultiply4by525toget:
2100
75×99+2×75
Tosimplifythisexpression,wecanfactorout75toget:
75(99+2)
Nowwecansimplify99+2to101.Thisgivesus:
7575
83×102-83×2
Tosimplifythisexpression,wecanfactorout83toget:
83(102-2)
Nowwecansimplify102-2to100.Thisgivesus:
8300
25×(24+16)
Tosimplifythisexpression,wecanfirstsimplify24+16to40.Thenwecanmultiply25by40toget:
1000
178×99+178
Tosimplifythisexpression,wecanfactorout178toget:
178(99+1)
Nowwecansimplify99+1to100.Thisgivesus:
17800
125×(33-1)
Tosimplifythisexpression,wecanfirstsimplify33-1to32.Thenwecanmultiply125by32toget:
4000
156×107-7729
Tosimplifythisexpression,wecansimplymultiply156by107andthensubtract7729.Thisgivesus:
16592
37.4-(8.6+7.24-6.6)
Tosimplifythisexpression,wecanfirstsimplifythetermsinsidetheparentheses.Thisgivesus:
37.4-(9.84)
Nowwecansubtract9.84from37.4.Thisgivesus:
27.56
360÷[(12+6)×5]
Tosimplifythisexpression,wecanfirstsimplify12+6to18.Thenwecanmultiply18by5toget:
90
Nowwecandivide360by90toget:
4
500×6-(50×2-80)
Tosimplifythisexpression,wecanfirstsimplify50×2to100.Thenwecansubtract100from80toget:
-20
Nowwecansimplify500×6to3000.Finally,wecanadd-20to3000toget:
2980
(45+38-16)×24
Tosimplifythisexpression,wecanfirstsimplify45+38to83.Thenwecansimplify83-16to67.Finally,wecanmultiply67by24toget:
1608
[64-(87-42)]×15
Tosimplifythisexpression,wecanfirstsimplify87-42to45.Thenwecansimplify64-45to19.Finally,wecanmultiply19by15toget:
285
[49-28]÷7
Tosimplifythisexpression,wecanfirstsimplify49-28to21.Then
温馨提示
- 1. 本站所有资源如无特殊说明，都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等，如果需要附件，请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸，网页内容里面会有图纸预览，若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间，仅对用户上传内容的表现方式做保护处理，对用户上传分享的文档内容本身不做任何修改或编辑，并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容，请与我们联系，我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 河北省申论公务员考试复习策略解析(2026年)
- 天津市数学初二下学期期末巩固难点详解
- 基础主任面试题题库详解
- 运维工程师面试题(某大型央企)题库解析(2026年)
- 老年患者围术期多学科团队协作模式的现状与未来发展
- 2026年木材水运工专项题库(附答案与解释)
- （正式版）DB45∕T 2253-2021 《农药原料包装桶清洗利用技术规程》
- 《空间的联结》教案-2026-2027学年人美版（新教材）小学美术六年级上册
- 碳酸二乙酯项目建议书
- 2026年卫生专业技术资格考试肿瘤外科学(中级342)相关专业知识梳理难点解析
- 2026杭州市市级机关事业单位招聘编外人员综合基础知识和综合应用试题附答案
- 2026云南临沧市乡村产业发展集团有限公司招聘工作人员13人考试备考题库及答案详解
- 2026及未来5年中国流动住房市场数据分析及竞争策略研究报告
- 2026西语翻译面试题目及答案
- GB/T 10128-2026金属材料室温扭转试验方法
- 2026贵州省专业技术人员继续教育公需科目考试题库
- 2026年秋季新教材统编版九年级上册道德与法治全册知识点背诵提纲精简版
- 2026-2030中国激光打印机行业发展现状与市场前景趋势洞察报告
- 透析患者急性左心衰护理
- 2026年屠宰兽医卫生检验员考试题库(附答案)
- 2025年7月12日全国青少年信息素养大赛Python编程挑战赛(小学组-复赛)真题(含答案)
评论
0/150
提交评论