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四年级脱式100道带过程

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+1594、465+358-27 5、647-(85+265) 6、476+(65-29)7、154*8÷16 8、400÷25

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)=101+200=3015、24+127+476+573=(24+476)+(127+573)=500+700=12006、400-

1+2+3+4+5+6+7+8+9+0+11+12+13+14+15+16+17=

25*125*40*8 =(125*8)*(25*40)=1000*1000=1000000 125*18-10=125*8=1000

45+240÷12 124+78+22 100-35-25 (140-70)*54 63+84*2÷42 490÷7+24*526*6-110 345+99 (46-20)*30-9025*27*4 15*7+85*7 (40-4)*25125*64 2400÷80-14*2 108-(83+360÷60) (420+48)÷(375-345) 290-(34*3+99) 142-54÷9+14 240÷16 75*4*

120+90= 543-306= 300÷12= 120*5= 12+18+14= 62+160+38= 14*60= 203-80= 50*15*4= 175-56= 250*8= 420*20= 25+67+75= 4500÷300= 25*38= 54+97= 560÷40= 145+55= 46+49+51= 9100÷70= 103*3= 28*99= 436+208= 323-197= 630÷45

1.95.6*18+0.4*18 =(95.6+0.4)*18 =96*18 =17282.907*99+907 =907*(99+1) =907*100 =907003.0.6*143-0.6*43 =0.6*(143-43) =0.6*100 =604.6.5*8+3.5*8-47 =(6.5+3.5)*8-47 =80-47 =335.14*2.25+14*3.75 =(2.25+3.75)*14 =6*14 =846.3.5*0.8+5.5

1.3/7 * 49/9 - 4/3 2.8/9 * 15/36 + 1/27 3.12* 5/6 2/9 *3 4.8* 5/4 + 1/4 5.6÷ 3/8 3/8 ÷6 6.4/7 * 5/9 + 3/7 * 5/9 7.5/2 -( 3/2 + 4/5 ) 8.7/8 + ( 1/8 + 1/9 ) 9.9 * 5/6 + 5/6 10.3/4 * 8/9 - 1/3 11.7 * 5/49 + 3/14 12.6 *( 1/2 + 2/3 ) 13.8 * 4/5 + 8 * 11/5 14.31 *

1.125*3+125*5+25*3+25 2.9999*3+101*11*(101-92) 3.(23/4-3/4)*(3*6+2) 4. 3/7 * 49/9 - 4/3 5. 8/9 * 15/36 + 1/27 6. 12* 5/6 2/9 *3 7. 8* 5/4 + 1/4 8. 6÷ 3/8 3/8 ÷6 9. 4/7 * 5/9 + 3/7 * 5/9 10. 5/2 -( 3/2 + 4/5 ) 11. 7/8 + ( 1/8 + 1/9 ) 12. 9 * 5/6 + 5/6

(1) 94 * 8 = (2) 57 * 6 = (3) 9 * 67 =(4) 26 * 9 = (5) 41 * 9 = (6) 57 * 3 =(7) 7 * 79 = (8) (20) 68 * 2 =四年级几百几十数乘一位数(1) 4 * 30 = (2) 100 * 4 = (3) 700 * 5 =(4)

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