1.
149 – 10 =
97
139
|
2.
942 – 70 =
872
209
|
3.
? – 20 = 446
466
229
|
4.
206 – 50 =
154
156
|
5.
? – 40 = 83
125
123
|
6.
580 – 80 =
178
500
|
7.
? – 100 = 39
18
139
|
8.
335 – 10 =
325
101
|
9.
? – 50 = 745
795
259
|
10.
451 – 70 =
381
113
|
11.
693 – 100 =
593
306
|
12.
? – 20 = 808
828
294
|
13.
510 – 90 =
420
5
|
14.
? – 20 = 167
33
187
|
15.
117 – 60 =
57
45
|
16.
330 – 30 =
168
300
|
17.
220 – 90 =
130
126
|
18.
699 – 100 =
599
494
|
19.
? – 30 = 754
784
724
|
20.
508 – 40 =
468
407
|
1.
149 – 10 =
97
139
|
2.
942 – 70 =
872
209
|
3.
? – 20 = 446
466
229
|
4.
206 – 50 =
154
156
|
5.
? – 40 = 83
125
123
|
6.
580 – 80 =
178
500
|
7.
? – 100 = 39
18
139
|
8.
335 – 10 =
325
101
|
9.
? – 50 = 745
795
259
|
10.
451 – 70 =
381
113
|
11.
693 – 100 =
593
306
|
12.
? – 20 = 808
828
294
|
13.
510 – 90 =
420
5
|
14.
? – 20 = 167
33
187
|
15.
117 – 60 =
57
45
|
16.
330 – 30 =
168
300
|
17.
220 – 90 =
130
126
|
18.
699 – 100 =
599
494
|
19.
? – 30 = 754
784
724
|
20.
508 – 40 =
468
407
|