小学四年级数学上册脱式计算练习题(2)

1、小学四年级数学上册脱式计算练习题2800 十 100 + 789(947 599) + 7X34(80-25 ) X2(93 + 25X21) 9723 (521 + 504) -5(39 21) X396 -)507-13X63 + 498384 -12 + 3X312337 (7+6) X3057X12 560-35848 640-16X12(420+48) ( 375 345)960 - (1500 32X45)(12+24+80) X5063+84X2-4245+240-1215X7+85X7(46-20) X30-902400 - 80 14 X 2142 54 - 9+1416X

2、76 76 X6168 - 12-48 - 12182 - 13+208 - 13525 - 21-378 - 21450 2X (16 + 9)420 - (205 198) X4(960 400)- 70(140-70 ) X 5463+84 X 2 -42490 - 7+24 X 5(142 54 - 9+142400 - 80 14 X 2(420 + 48) - (375 345)(420 + 48)-(375 345) 420 -(205 198 ) X416 X 76 76 X 6450 2 X( 16 + 9)125 X( 8 X 4) X 563+84 X 2 -42450

3、2 X( 16 + 9)420 -(205198) X4460 -(29 18 - 3)25 - 13 X(266-250 )55+720 -(40-35 )45-20 X 3 -4(38+42 )X (525 - 35)340-240 十20 X5(58+12 ) X (96 - 8)36 X 4 + 27 X 3(135 25) + 40 X 6(338 + 89-19)- 3469 X( 800 700)- 5206 X 3-128 - 4(482-42 ) - 22-1732 X 5 X 6-648+42 - 6-1260- (303+3)31 X 13-228 - 19345 -(1

4、28-531 - 9)80 - 2+100 - 5140-20 X 5+2520 X 30+20 X 4025 X (30+10)800 - 40-400 - 40600 - (120 - 60)(26+14) X 70(26+14) X (70-40)(35+45) - (90-10)125 X47 47X25120-36 X 4 - 18+35(350-80 )为6 X 10-(21+29)180 - (36 - 12)+680 - (32+8) X 300450 - 15+10 X 3(40+180 - 30) X 2(240+180) - (30 X 2)800-800 - 80 X

5、30800-(70 X 6+180)65 X (40+20 X 3)36+360 十125 X 121+79 X 545 X 6+35 X 667 X 5-37 X 539 X 8-6 X 39326 X 78-326 X 68120 X 90-110 X 90125 X( 8+4)12 X( 40-5)5 X 27+63 X 564 X 9-14 X 923 X 134-34 X 2368 X 48+68 X 5248 101-4865 X 5+35 X 549 X 25X879 32+79 6867 X 101-67256 X 7-56 X 7(75 + 25廿)-402800-25X4 + 804