Place Value
How many tens are in the number 67?
6 tens
What is 15 - 9 = ?
`What number is missing?
10, 20, 30, ___, 50
40
Sally has 8 cookies, she ate 3. How many does she have left?
5 cookies
3
71, 72, ___, 74, 75
What is 1 more than 28
29
What is one less than 54?
What number is missing?
15, 25, 35, __
45
What is 10 more than 13
23
What is 10 less than 17
7
18, 28, ____, 48
What number has 1 tens and 9 ones
19
What is 20 + 8 =
28
What is 35 - 20 =
15
What number is missing?
5, 10, __, 20, 25
15
Tim is doing his homework. He does 5 problems. His mom helps him with some more. When he's done he has 12 problems finished. How many problems did his mom help him with?
7 problems