Addition
9+8
17
16-8
8
7 tens and 8 ones
78
Scott had 3 turtles and 9 squirrels. How many animals did he have?
12 animals
Count to 100 by 10's
12+39
51
76-53
23
3 hundreds 9 tens 5 ones
395
The first graders scored 75 points. The second graders scored 49 points. How many more points did the first graders score?
26 points
Count to 50 by 5's.
5, 10, 15, 20, 25, 30, 35, 40, 45, 50
28+32+45
105
750-227
523
5 tens 2 ones +2 tens 8 ones
80
Sue read 168 pages in the morning and 254 pages in the afternoon. How many pages did she read in all?
422 pages
Count to 30 by 2's.
2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30
326+415
741
843-169
674
4 hundreds 8 tens 4 ones + 3 hundreds 9 tens 7 ones
821
There were 600 pages in the book. I read 354 pages before lunch. How many pages are left to read?
246 pages
Count by 3's to 30
3, 6, 9, 12, 15, 18, 21, 24, 27, 30
478+387
865
704-338
366
Which number is larger: 623 or 683
683
I was putting together a 500 piece puzzle. I put 135 pieces in during recess. I put 165 pieces in after lunch. How many pieces are left to put in?
200 pieces
Count to 40 by 4's.
4, 8, 12, 16,20, 24, 28, 32, 36, 40