Solve addition and subtraction problems using the "I can make a model" strategy.
Identify, record and use related facts within 20 to subtract.
Apply the inverse relationship of addition and subtraction. (If 3 + 7 = 10, then 10 - 3 = 7 and 10 - 7 = 3)
Represent equivalent forms of numbers using sums and differences within 20.
Determine if an equation is true or false. (Is 4 + 8 = 15 true or false?)
Add and subtract facts within 20 and demonstrate fluency for addition and subtraction within 10. (In other words, be pretty automatic and confident with facts within 10)
| Take a look at the fact family video! |
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