|
1.
981 + 10 =
2
991
|
2.
998 – 80 =
918
2
|
3.
670 – 10 =
660
2
|
4.
151 – 70 =
2
81
|
|
5.
685 + 100 =
785
2
|
6.
550 – 40 =
2
510
|
7.
916 + 70 =
986
2
|
8.
450 + 40 =
490
2
|
|
9.
824 – 30 =
794
2
|
10.
600 – 30 =
2
570
|
11.
141 + 20 =
161
2
|
12.
867 – 40 =
827
2
|
|
13.
598 + 70 =
2
668
|
14.
945 + 90 =
2
1035
|
15.
336 – 20 =
316
2
|
16.
362 + 60 =
2
422
|
|
17.
971 – 80 =
2
891
|
18.
663 + 30 =
693
2
|
19.
108 – 10 =
98
2
|
20.
642 + 10 =
652
2
|
|
1.
981 + 10 =
2
991
|
2.
998 – 80 =
918
2
|
3.
670 – 10 =
660
2
|
4.
151 – 70 =
2
81
|
|
5.
685 + 100 =
785
2
|
6.
550 – 40 =
2
510
|
7.
916 + 70 =
986
2
|
8.
450 + 40 =
490
2
|
|
9.
824 – 30 =
794
2
|
10.
600 – 30 =
2
570
|
11.
141 + 20 =
161
2
|
12.
867 – 40 =
827
2
|
|
13.
598 + 70 =
2
668
|
14.
945 + 90 =
2
1035
|
15.
336 – 20 =
316
2
|
16.
362 + 60 =
2
422
|
|
17.
971 – 80 =
2
891
|
18.
663 + 30 =
693
2
|
19.
108 – 10 =
98
2
|
20.
642 + 10 =
652
2
|