四年级数学下册简便计算易错100道 人教版 （图片版 含答案）

=(45+135)+73 =(357+143)+288 =(272+68)+68
=200+73 =500+288 =300+68
=273 =788 =368
=(129+171)+(235+165) =(17+23)+(145+35)
=300+400 =40+180
=700 =220
=(9998+2)+(1+99)+(998+2)+(1+9) =(999+1)+(99+1)+(9
=10000+100+1000+10 +1)
=11110 =1000+100+10
=1110
=400-(256+44) =545-145-167 =258-(42+16)
=400-300 =400-167 =258-58
=100 =233 =200
=284-(159+41) =236-36-177 =344-144-37
=284-200 =200-177 =200-37
=84 =23 =163
=45×(4×5) =(25×4)×9 =(8×125)×13
=45×20 =100×9 =1000×13
=900 =900 =13000
=(250×4)×(125×8) =(6×7)×125×8×5
=1000×1000 =(125×8)×(8×5)×7
=1000000 =1000×30×7
=210000
=25×4×(8×11)×125 =23×(5×2)
=(25×4)×11×(8×125) =23×10
=100×11×1000 =230
=110000
=(8×9)×125 =76×(100+3) =(8+10)×125
=(8×125)×9 =76×100+76×3 =8×125+10×125
=1000×9 =7600+228 =1000+1250
=9000 =7828 =2250
=125×40-125×4 =(25×4)×9 =12×40+50×40
=5000-500 =100×9 =480×2000
=4500 =900 =2480
=(45+55)×37 =28×(21+79) =23×(17-7)
=100×37 =28×100 =23×10
=3700 =2800 =230
=38×(46+64) =46×1+46×59 =99×32+32×1
=38×100 =46×(1+59) =32×(99+1)
=3800 =46×60 =32×100
=2760 =3200
=167×(2+3+5) =255×(28-2-6)
=167×10 =255×20
=1670 =4500
=67×125+33×125 =(33×3)×22+33×34
=125×(67+33) =33×66+33×34
=125×100 =33×(66+34)
=12500 =33×100
=23×8+25×8+27×8+25×8 =3300
=8×(23+25+27+25)
=8×100
=800
=800÷8÷5 =600÷(12×5) =480÷48÷5
=100÷5 =600÷60 =10÷5
=20 =10 =2
=250÷(5×2) =240÷(5×12) =360÷(4×9)
=250÷10 =240÷60 =360÷36
=25 =4 =10
=2400÷5÷5 =7800÷6÷2 =420÷(7×5)
=480÷5 =1300÷2 =420÷7÷5
=96 =650 =60÷5
=12
=354-104-4 =405-100+1 =197+100+2 =92+(100-1)
=250-4 =305+1 =297+2 =92+100-1
=246 =306 =299 =191
=323-123+189 =672-(36+64) =6467-1467+(1982-
=200+189 =672-100 832)
=389 572 =5000+1000
=6000