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Subtracting With Numbers To 49

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An Online Subtraction Flash Card - By HelpingWithMath.com

From a series of Online Flashcards: Addition to 9 | to 19 | to 49 | to 99 | Subtraction to 9 | to 19 | to 49 | to 99

Related Resources

The Addition and subtraction Flashcard shown above is aligned with standard 2NBT05 taken from the Common Core Standards For Mathematics (see the extract below) as are the resources listed below.

Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

Flashcard

Game

Lesson

Help with Pre-Algebra: Simple Equations

Quiz

Addition with making 20 e.g. 18 + 7 = 25
Addition with making multiples of 10 e.g. 66 + 8 = 74

Worksheet

Bridging

Making (Bridging) Multiples of 10 e.g. 17 + 5, 78 + 7

Number bonds

Number bonds to 20 e.g.8 + ___ = 20
Number bonds to 30 e.g.26 + ___ = 30
Number bonds to 40 e.g.12 + ___ = 40
Number bonds to 50 e.g.17 + ___ = 50
Number bonds to 100 e.g. 43 + ___ = 100
Number Bonds To 100 (with blank number lines)

Slightly Different

Adding To Subtract e.g. 45 - 27 = (45+3 = 48) - (27+3=30) = 18

To 100

2-digit & 1-digit - no regrouping e.g. 34 + 5, 56 - 4
2-digit numbers - no regrouping e.g. 42 + 36, 34 + 12
2-digit numbers - regrouping e.g. 47 + 16, 78 - 29
2-digit - 1-digit - no regrouping e.g. 68 - 5
2-digit - 1-digit - regrouping e.g. 65 - 7
2-digit - 2 -digit - no regrouping e.g. 86 - 43
2-digit - 2-digit - regrouping e.g. 57 - 39

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