Missing Numbers
What is the missing number?
2, 4, , 8, 10
6
6 + = 10
4
How many ones in 23?
Show me 2 rows of 5
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What is the missing number?
5, 10, 15, , 25, 30
20
16 + = 20
4
How many tens in 23?
2
Show me 5 rows of 2
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What is the missing number?
1, 3, 5, 7, 11, 13
9
8 + 12 =
20
What is the place value of the 4 in 45?
4 tens = 40
What do you see?
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3 rows of 4
OR
4 columns of 3
What is the missing number?
24, 26, 28, 32, 34
30
23 + 7 =
30
What is the value of the 6 in 236?
6 ones
Show me 6 columns of 3
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What are the missing numbers?
2, 12, 22, , 42, 52, , 72, 82
32 and 62
21 + 21 =
42
What is the place value of the 6 in 634?
600 = 6 hundreds
What do you see?
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3 rows of 10
OR
10 columns of 3