__ + 519 - 541 = 116
__ - 862 + 640 = 432
418 + 658 - __ = 134
12 + 8 =
6 + 2 =
11 + 2 =
20 + 25 =
45 - 5 =
10 + 10 =
96 - 53 =
38 - 19 =
82 - 36 =
0.7 - 0.4 =
0.8 + 0.7 =
0.4 - 0.1 =
413 + 164 + 350 - 613=
568 + (463 - 261) - 564=
956 - 266 - 306 - 165=
969 + 5262 =
825 + 6396 =
8296 + 835 =
__ - 48 - 15 = 10
__ - 11 + 18 = 87
74 - 34 + __ = 100
75 - 5x = 19
65 + 2x = 721
62 - 4x = 13
631 + 345 - 538=
592 - 801 + 381=
876 - 294 + 180=
70 × 2 =
22 × 4 =
73 × 3 =
900 ÷ 6 =
400 ÷ 4 =
504 ÷ 9 =
92 × 48 =
51 × 26 =
58 × 77 =
248 + 217 + 148 + 330=
263 + 239 + 121 + 347=
189 + 294 + 345 + 146=
222 - __ = 13
514 - __ = 368
255 - __ = 89
6 7 + 1 4 + 3 4 =
6 7 + 1 3 - 3 7 =
26 + 8 =
66 + 5 =
47 + 6 =
___ + 3 × 5 = 60
2 × __ ÷ 6 = 3
___ ÷ 8 + 6 = 12
865 ÷ 4 ≈
347 ÷ 6 ≈
252 ÷ 4 ≈
7 角 2 分+ 3 角 5 分= ___元___角___分
3 角 2 分- 1 角 3 分= ___角___分
__ - 52 - 20 = 1
(__ × 2) × 3 = 54
13 + 89 - __ = 50
45 - __ = 5
47 - __ = 12
42 - __ = 10
519 - 489 + 237=
747 - 729 + 850=
927 - 755 + 822=
34 57 ÷ 18 23 ÷ 2 85 =
1 37 × 14 41 ÷ 12 89 =
6 + 6 =
4 + 6 =
13 + 7 =
4 8 ÷ 4.0 =
4 9 × 8.3 =
92 + 68 - 63=
96 -(30 - 13)=
90 + 25 - 28=
39 - 11 =
33 - 13 =
19 - 16 =
648 + 72 =
720 - 360 =
64 ÷ 16 =
73 + 2 × 5=
80 - 95 - 70=
9 × 8 × 9=
656 - 46 - 54=
367 - 112 - 237=
180 - 24 - 76=
__ × 5 = 50
90 × __ = 810
__ × 3 = 90