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Domain Number and Operations in Base Ten
Grade 1
Cluster Use place value understanding and properties of operations to add and subtract.

Number and Operations in Base Ten

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1.NBT.C.4 Add within 100, including adding a two-digit number and a one-digit number, and adding a...
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1.NBT.C.5 Given a two-digit number, mentally find 10 more or 10 less than the number, without having to...
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1.NBT.C.6 Subtract multiples of 10 in the range 10–90 from multiples of 10 in the range 10–90...
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