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80道简便计算

0.82*0.5 = 0.91+8.9+0.09= 104*23*0.5= 2.82*0.5+0.18+0.5= 2.5*3.4+2.5*0.6= 0.2+0.2/101= 1.2*0/3.6= 0.57/1.9= 370/74 = 0.18*20= 1809/0.03= 101*0.1= 925+200*4= 8*(70+129)= 5.6*0.81+0.19*5.6 = 99*7.8+7.8= 1.25*16*0.5= 0.46+0.95+0.54=

7.6*0.8+0.2*7.6 0.85*199 0.25*8.5*4 1.28*8.6+0.72*8.6 12.5*0.96*0.8 10.4-9.6*0.35 0.8*(4.3*1.25) 3.12+3.12*99 28.6*101-28.6 0.86*15.7-0.86*14.7 2.4*102 2.31*1.2*0.5 14-7.32-2.68 2.64+8.67+7.36+11.33 70÷28 (2.5-0.25)*0.4 9.16*1.5-0.

1) 66x+17y=3967 25x+y=1200 答案:x=48 y=47 (2) 18x+23y=2303 74x-y=1998 答案:x=27 y=79 (3) 44x+90y=7796 44x+y=3476 答案:x=79 y=48 (4) 76x-66y=4082 30x-y=2940 答案:x=98 y=51 (5) 67x+54y=8546 71x-y=5680 答案:x=80 y=59 (6

26+2=2845+30=7511+1=1289+58=14729+24=5328+41=6997+43=14070+57= 0=9397+36=13364+1=6540+80=12040+37=7770+40=11069+19=8839+74=11322+25=

73.8-1.65-13.8-5.35 66.86-8.66-1.34 0.25*16.2*4 3.72*3.5+6.28*3.5 36.8-3.9-6.1 2 5.48-(9.4-0.52) 4.8*7.8+78*0.52 3.6*102 12.8*0.25+3.6÷4 32+4.9-0.9 4.8-4.8*0.5 (1.25-0.125)*8 4.8*100.1 56.5*9.9+56.5 7.09*10.8-0.8*7.09 4.02+5.4+0.98 5.

300÷125÷8=300÷(125*8)=300÷1000=0.3396-96-172-28 =(396-96)-(172+28)= 300-200= 100 125*24 = 125*8*3 = 1000*3= 3000360÷24=360÷6÷4=60÷4=15240÷48=240÷24÷2=10÷2=5800÷32=800÷8÷4=100÷4=2527+456+73 =(27+73)+456 =100+

158+262+138 375+219+381+225 5001-247-1021-232 (181+2564)+2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+270)+1017 99+999+9999+99999 7755-(2187+755)

望采纳谢谢.(1)2.5*32*0.125=(2.5*4)*(8*0.125)=10*1=10 (2)3.5-7+6.5=3.5+6.5-7=3 (3)1.2*2.5+0.8*2.5 =2.5(1.2+0.8)=25 (4)8.9*1.25-0.9*1.25 =1.25(8.9-0.9)=10 (5)12.5*7.4*0.8 =12.5*0.8*7.4=74 (6)6.5*9.5+6.5*0.5 =6.5*(9.5+0.5)=6.5*10=65

先出两题:1. 99.2x100+0.8x1002. 1.25x10+8x10+4x10

我提供的人教版四年级下册简便计算题25道及答案你自己挑,希望能对你有帮助:1、56+31+24=(56+24)+31=80+31=1112、615+475+125 =615+(475+125)=615+600=12153、125*64 =125*8*8=1000*8=80004、 89+101+111=101+(89+111)

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