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