Addition & Subtraction in Words

Adding or subtracting 10, 100, 1000 or 10000 to a given number.

Mapped to CCSS Section# 4.NBT.A.1, 4.NBT.B.4

Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right. For example, recognize that 700 ÷ 70 = 10 by applying concepts of place value and division.,Fluently add and subtract multi-digit whole numbers using the standard algorithm.
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