2年级脱式计算题答案

36.72÷4.25×9.94.07×0.86+9.125.67×0.2-0.6218.1×0.92+3.930.043×24+0.8750.4×0.7×0.250.78+5.436+136.72÷4

3X+5X=4814X-8X=126*5+2X=4420X-50=5028+6X=8832-22X=1024-3X=310X*（5+1）=6099X=100-XX+3=18X-6=1256-2X=20

.(23/4-3/4)×(3×6+2)4.3/7×49/9-4/35.8/9×15/36+1/276.12×5/6–2/9×37.8×5/4+1/48.6÷3/8–3/8÷69.4/7×5/9+3/7

7511651-------------+-------------+-------------8612714217255258---------------1-------〔----+----〕42

1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-（3/2+4/5）

30.8÷[14－(9.85＋1.07)][60－(9.5＋28.9)]÷0.182.881÷0.43－0.24×3.520×[(2.44－1.8)÷0.4＋0.15]28-(3.4+1.25×2.4

75÷〔138÷（100-54）〕85×(95－1440÷24)80400－(4300＋870÷15)240×78÷（154-115）1437×27＋27×563〔75-（12+18）〕÷152160

5.4÷1.8+240×1.59000÷72×(1.25×0.7×8)61-(1.25+2.5×0.7)[(10-0.8)+9.85]-2÷0.1253^2*3.256783^3-512+5268.3

1）25%*132+1/4*82)32*0.125*25=1/4*132+1/4*8=(4+8)*0.125*25=1/4*(132+8)=(4*25)*(8*0.125)=1/4*140=100*1

2/1*2=13/1*3=13/2*3=23/1*6=24/3*8=65/3*20=127/3*14=68/7*40=354/3*16=129/5*27=152/1*30=1512/7*24=1430

30.8÷[14－(9.85＋1.07)][60－(9.5＋28.9)]÷0.182.881÷0.43－0.24×3.520×[(2.44－1.8)÷0.4＋0.15]28-(3.4+1.25×2.4

1.3/7×49/9-4/3=7/3-4/3=3/3=12.8/9×15/36+1/27=10/27+1/27=11/273.12×5/6–2/9×3=10-2/3=30/3-2/3=28/34.8×

五年级都是脱式计算题1）25%*132+1/4*82)32*0.125*25=1/4*132+1/4*8=(4+8)*0.125*25=1/4*(132+8)=(4*25)*(8*0.125)=1/4

0.4×125×25×0.8=（0.4×25）×（125×0.8)=10×100=10001.25×（8+10）=1.25×8+1.25×10=10+12.5=22.59123-（123+8.8）=9

1.125*3+125*5+25*3+252.9999*3+101*11*(101-92)3.(23/4-3/4)*(3*6+2)4.3/7×49/9-4/35.8/9×15/36+1/276.12×

180÷30=720÷30=360÷30=920÷40=780÷60=960÷40=432÷24=625÷23=837÷43=850÷17=780÷26=544÷17=898÷28=420÷30=78

408－12×24=408-288=120（46＋28）×60=74x60=444042×50－17=2100-17=208332＋105÷5=32+21=53420×（327－238）=420x89

1x^2+(a+b)x+ab29x^2-49y^2318x^2+78x+7243/2x^3y^2-6x^2y^2+3xy^35-5a^4b^562a^2-3ab+6b^27a^3c8m^2n^2-19

1650-480÷16*15=1650-450=12001.3÷0.5÷2.6=2.6/2.6=1496+250*16=496+4000=4496123+5.67+8.77*567=5101.2612

题呢?