Which of these is an ODD number?
47
36
If a number ends in 1, 3, 5, 7 or 9 we know that it is....
ODD
Tell me 2 ways to COMPOSE the number 15.
Ex. 5 and 10, 2 and 13.
Would you round this number up to 20 or down to 10?
Up to 20
How many HUNDREDS are in the number 1620?
6
What number has 5 tens and 5 ones?
55
Would you round this number up to 20 or down to 10?
down to 10
Use BASE TEN BLOCKS to show me the number 405
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Which of these is an EVEN number?
23
18
Put these numbers in order from LEAST to GREATEST. 25, 15, 50, 5.
5, 15, 25, 50.
What is the next ODD number after 7?
9
Use BASE TEN BLOCKS to show me the number 62
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How many TENS are in the number 45?
4
How do you say this number?
89
Would you round this number up to 10 or down to 0?
up to 10
What number has 2 hundreds and 3 tens?
230
What is another way to say 300 + 20 + 2?
322
What does it mean to ESTIMATE?
to use what you know about numbers to make a guess
Tell me 2 ways to COMPOSE the number 10.
Ex. 2 and 8, 5 and 5
How do you say this number?
33
What number can be DECOMPOSED into 3 and 4?
7
Use BASE TEN BLOCKS to show me the number 1310
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