文档介绍：+15×6= 135
÷5×8=400
×5÷2×4=60
×3+8=98
÷4+20×5= 200
+12÷3+20=34
7.(80÷20+80)÷4=21
+(100-10×5)=120
÷40= 9
×20= 800
-25= 55
+45=115
×2= 180
×6= 96
×6= 1800
÷9=60
×20= 600
÷4= 100
-80= 270
+70=230
-64÷8= 10
÷6+20=27
-5×7= 5
+60÷3=100
+18÷2= 50
-11×5= 20
+7-29= 20
÷80=70
×16= 400
×25= 3000
×11= 396
÷25=41
+70= 406
×9×4= 900
-33×3= 101
-1010=2010
×50= 600
×8= 200
×11= 253
÷25=5
-2200=2000
+80= 300
×8×5= 800
-3×200=0
+20÷2= 30
-25÷5= 30
+8-40= 4
÷40=70
÷14 = 7
÷24 = 4
÷14 =4
÷13 = 5
÷15 = 5
÷24 =5
÷25 = 8
÷16 = 50
÷21 =40
÷14 = 40
÷13 = 30
÷15 =40
÷24 = 3
÷17 = 5
÷15 =6
÷16 = 6
÷26 = 4
÷17 =3
÷40 = 2
÷20 = 5
÷4 =25
÷40 = 6
÷4 = 230
÷60=5
÷2 = 32
÷4 = 16
÷5 =10
÷8 =
÷4 = 24
÷6 =15
+80 = 480
-80 = 320
×80 =3200
÷80 = 5
÷16 = 3
÷24 =4
×5= 800
×250= 1000
×518= 0
×76= 760
×10=360
×6= 90
×3= 72
×18= 90
×4= 74
×15