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化简:12-3=______.-数学
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下列运算正确的式子是()A.2+5=10B.5x-x=4x=2xC.1-b1+b=(1-b)(1-b)(1+b)(1-b)=1-bD.3a+6a3=33a-数学
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(12-418)-(313-40.5).-数学
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--- ______ the sports meeting might be put off.---Yes, it all depends on the weather.A.I’ve toldB.I’
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计算与化简:(1)18-50+38(2)a8a-a212a+32a3(a>0)(3)a2-4a+4+(1-a)2(a≤1)-数学
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计算:(3-2)2+3=______.-数学
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28+18-(7-2)=______.-数学
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计算2+13-12=______.-数学
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化简:(1)(-5)2-16+(-2)2;(2)(48-27)÷3.-数学
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计算题:(1)12-13-113(2)8-234×211-数学
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33+2-22-23.-数学
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Mr. Wang, who is said to have immigrated to the USA, __ at No.2 Middle School in our city for twenty
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计算:8a-2a2+3a29a.-数学
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The teacher,with 6 girls and 8 boys of her class, ____visiting a museum when the earthquake struckA.
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32-2+122.-数学
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计算:8+13-212=______.-数学
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Do you know by the time you leaves school your parents ________ $ 6 000 on your education.A.will hav
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The number of people, who have access to their own cars,sharply in the past decade. A.roseB.is risin
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计算:12+48=______.-数学
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计算:32-512+618.-数学
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下列式子运算正确的是()A.3-2=1B.8=42C.13=3D.12+3+12-3=4-数学
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若三角形的三边长分别为18,50和32,则它的周长为______.-数学
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---When did you move to Sanya? ---In 2008.But I______in Tibet for 8 years.A.has workedB.has been wor
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计算或化简:(1)(212-313)×6(2)a8a-2a218a+32a3.-数学
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计算、解方程:(1)计算:(48-418)-(313-20.5);(2)x(2x-5)=4x-10.-数学
题目简介
计算:20-215+315.-数学
题目详情
答案
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