2800 十 100 + 789
四年级数学式题
(947 — 599) + 7X34
(80-25 ) X2
(93 + 25X21) >9
723 — (521 + 504) -5
(39 — 21) X396 -)
507-13X63 + 498
384 -12 + 3X31
2337 — (7+6) X30
57X12 — 560-35
848 — 640-16X12
(420+48) ( 375 —345)
960 - (1500 — 32X45)
(12+24+80) X50
63+84X2-42
45+240-12
15X7+85X7
(46-20) X30-90
450 — 2X (16 + 9)
420 - (205 — 198) X4
(960 —400)- 70
(140-70 ) X 54
63+84 X 2 -42
490 - 7+24 X 5
(142 — 54 - 9+14
2400 - 80 — 14 X 2 (420 + 48) - (375 — 345)
(420 + 48)-(375 — 345) 420 -(205 — 198 ) X4 16 X 76 — 76 X
6
450 — 2 X( 16 + 9)
125 X( 8 X 4) X 5
63+84 X 2 -42
450 — 2 X( 16 + 9) 420 -
-(205—198) X4
460 -(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)- 34
69 X( 800 — 700)- 5
206 X 3-128 - 4
(482-42 ) - 22-17
31 X 13-228 - 19
345 -(128-531 - 9)
80 - 2+100 - 5
140-20 X 5+25
20 X 30+20 X 40
25 X (30+10)
800 - 40-400 - 40
600 - (120 - 60)
(26+14) X 70
(26+14) X (70-40)
(35+45) - (90-10)
125 X47 — 47X25
120-36 X 4 - 18+35
(350-80 )为
6 X 10-(21+29)
180 - (36 - 12)+6
80 - (32+8) X 300
450 - 15+10 X 3
800-(70 X 6+180)
65 X (
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