1.OA.A.1 Grade 1 · Operations & Algebraic Thinking · Free

Word Problems Within 20

2:05 video lesson

What your child learns

Solving addition and subtraction word problems within 20 - adding to, taking from, putting together, taking apart and comparing - with objects, drawings and equations that use a symbol for the unknown number.

Try it at home

Make up a problem at snack time: "You had 15 crackers, ate some, and now there are 9. How many did you eat?"

Words to use

word problem
unknown
equation
within 20

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