Addition
36 + 23 =
59
25 - 12 =
13
5, 10, 15, _____ , 25, 30
20
100 + 10 + 8
118
10 less than 20
10
180 + 20 =
200
49 - 36 =
13
2, 4, 6, 8, 10, ____, 14, 16, 18
12
50 + 6 + 300
356
1 less than 841
840
451 + 28 =
479
124 - 20 =
104
10, 20, 30, 40, ______ 60, 70, 80
50
43 + 900
943
10 more than 547
557
396 + 4 =
400
959 - 58 =
901
100, 200, 300, ______, 500, 600
400
800 + 70 + 9
879
100 more than 358
458
584 + 12 =
596
325 - 25 =
300
100, 150, 200, 250, 300, _____, 400, 450
350
1 + 40 + 600
641
100 less than 948
848
500
567 - 23 =
544
200, 400, 600, ______, 1000
800
30 + 9 + 700
739
1 more than 999
1,000
484 + 16 =
500
345 - 44 =
301
110, 120, 130, 140, ______ 160, 170, 180
150
900 + 70 + 8
978
100 more than 567
667