A poster showing the combinations of 20.
Use this poster in your classroom to show your students visually the numbers that add together to make 20.
teaching resource
Combinations of 20 Poster
PDF
| 1
page
| Grades:
2 - 3
Curriculum
CCSS.MATH.CONTENT.2.OA.B.2
Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.
CCSS.MATH.CONTENT.3.NBT.A.2
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
Math 2.4(A)
Recall basic facts to add and subtract within 20 with automaticity;
Math 3.4(A)
Solve with fluency one-step and two-step problems involving addition and subtraction within 1,000 using strategies based on place value, properties of operations, and the relationship between addition and subtraction;
Author
Jill (Teach Starter)
Teach Starter Publishing
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