四年级添去括号计算题

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四年级添去括号计算题

来源：baiyundou.net 日期：2024-07-11

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长念咳6169 9 9 9=7(小学四年级练习题)在等号左边各数之间添上运算符号和括号使等式成立9 9 9 9=79 9 9 9=99 9 9 9=115 6 2 3=243 7 6 2=242 4 6 3=249 5 4 2=24 -
越咬肯15049104303 ______[答案] 9-(9+9)÷9=7 (9-9)*9+9=9 9+(9+9)÷9=11 5*6-2*3=24 3*7+6÷2=24 2+4+6*3=24 (9-5)*(4+2)=24

长念咳616数学整式的加减、去括号题目. -
越咬肯15049104303 ______ ( 2A+2B—2AB)—(A+4B+AB)—(3AB+2B—2A)=2A+2B -2AB -A -4B -AB -3AB-2B+2A=3A-4B-6AB=3(A -B) -B-6AB=3*3-B -6=3-B

长念咳616四年级加减乘除小括号计算题 -
越咬肯15049104303 ______ 2400÷80-14*2 108-(83+360÷60) (420+48)÷(375-345) 420÷(205-198)*4 460÷(29-18÷3) 1450÷2*(16+9) 3、怎样算简便就怎样算: 715+265+335+285 125*32*5 46*201 7100-137-263+300 75*4*2*5 99*64+64

长念咳616数学计算题2道去括号的 -
越咬肯15049104303 ______ 2(X-2)-3(4X-1)=9(1-X)(过程写详细) 2x-4-12x+3=9-9x 2x-12x+9x=9+4-3 -x=10 x=-10 3X-2-8*(4分之1X-1)=-5(过程写详细) 3x-2x+8=-5 x=-5-8 x=-13

长念咳616四年级中括号计算题10道自己出题目【最好带答案】 -
越咬肯15049104303 ______ 1.计算 1.135+3.346+5.557+7.768+9.979=_____. 2. 计算 1.996+19.97+199.8=_____. 3. 计算 9.8+99.8+999.8+9999.8+99999.8=_____. 4. 计算 6.11+9.22+8.33+7.44+5.55+4.56+3.67+2.78 +1.89=_____. 5. 计算 1.1+3.3+5.5+7.7+9.9+11.11+13.13...

长念咳616急求200道4年级下册简便计算题(不要特殊符号,要能简算.)只要加.减.乘.除.括号5个符号.急 -
越咬肯15049104303 ______[答案] 四年级下册计算题练习一、计算下面各题. 1、475+254+361 2、615+475+125 3、860-168+159 4、465+358-27 5、647-(85+265) 6、476+(65-29) 7、154*8÷16 8、400÷25*75 9、16*25÷16*25 10、552÷69*8 11、600-120÷10 12、(600-120)÷10 ...

长念咳616下列去括号(或添括号)运算:①3m - [5n - (2p - 1)]=3m - 5n+2p - 1② - (3m - 2) - ( - n+p)= - 3m - 2+n+p③3xy - 5x 2 -
越咬肯15049104303 ______ ①3m-[5n-(2p-1)]=3m-5n+2p-1,去括号正确,故本项正确;②-(3m-2)-(-n+p)=-3m+2+n+p,去括号错误,故本项错误;③3xy-5x 2 y-2xy 2 +1=3xy-[5x 2 y+(2xy 2 -1)],添括号正确,故本项正确;④x 3 -5x 2 -4x+9=9-(5x 2 +4x-x 3 ),添括号正确,故本项正确;综上可得:①③④正确,共3个.故选C.

长念咳616谁有数学去括号题目啊
越咬肯15049104303 ______ 1)a+(b+c-d)= (),a-(b+c-d)=(); (2)a+5(b+2c-3d)=(),a-m(b+2c-3d)=(). 1)3+(2x-y)-(y-x)=();(2)2x-5a-(7x-2a)=(); (3)a-2(a+b)+3(a-4b)=();(4)x+2(3-x)-3(4x-1)=(); (5)2x-(5a-7x-2a)=();(6)2(x-3)-(-x+4)=().

长念咳616一道小学四年级的题添上运算符号,使式子成立{可以加括号 -
越咬肯15049104303 ______ 8+2=4+6 8+2-4=6 8+(2-4)=6 8=(-2)+4+6

长念咳616题:添上括号使左右相等,7*9+12÷3=1小学数学四年级海淀AB卷下第一单元A卷第四大题第三小题题目,今天的作业. -
越咬肯15049104303 ______[答案] 不可能,因为所有的数都比1大,唯一能使结果减少的数是除以3,但至少还会剩下4.

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