: .
370-7= 784-685二 76
X 15 =
486 - 2=
560 - 4=
607 - 5= 900-807= 915 - 3=
458+542= 423 - 3= 87 X19=
362 - 6=
525 - 3= 254 - 5= 192
602 - 7=
839 - 9= 726 - 6= 51
X16 =
78 X 22=
63 X 43=
367 - 4=
795
42 X 53=
15
X 82=
79 X 97= 28 X 32 =
54X 25
48
X 61=
39X 42
=
168
-8=
370
5=
640
-7=
19
X 64=
470
-9=
522 - 6=
312
570
-8=
810
-9=
660 - 5=
804
-7=
-7=
462 - 3= 780 - 4= 729 - 9= 624 - 6 =
x 51 =
48
x 34=
82
x 16=
x 65=
55
x 18=
75
x 26=
106
45 x 93=
816 - 8 =
2500+300
156-97= 386+479= 321
x 12=
125
x 23= 18 x 250=
52 x 49=
34 x 54=
66
竖式计算 来自淘豆网www.taodocs.com转载请标明出处.