AdditionShortcuts

AdditionShortcuts - 2 2 0 Review Combinations of Ten • 1 = 10 5 = 10 • 8 = 10 7 = 10 • 2 = 10 6 = 10 • 4 = 10 3 = 10 • 9 =10 9 2 8 6 1 4

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Shortcuts in Addition By Monica Yuskaitis
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Adding Long Columns Since addition is Commutative it doesn’t matter which numbers you add first. 4 + 2 + 5 + 1 = 12 1 + 4 + 5 + 2 = 12
Background image of page 2
Adding Long Columns Begin by looking for combinations of ten. 34 57 83 26 +
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Adding Long Columns Add up your ten combinations first. 34 57 83 26 + 0 2
Background image of page 4
Adding Long Columns Add up your ten combinations again. 34 57 83 26 +
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 2 2 0 Review Combinations of Ten • 1 + = 10 5 + = 10 • 8 + = 10 7 + = 10 • 2 + = 10 6 + = 10 • 4 + = 10 3 + = 10 • 9 + =10 9 2 8 6 1 4 7 5 3 Adding Long Columns • When a number keeps repeating use multiplication. 32 36 88 26 36 + 8 2 Adding Long Columns • When a number keeps repeating use multiplication. 32 36 88 26 36 + 8 2 2 1...
View Full Document

This note was uploaded on 11/22/2011 for the course EL ED 361 taught by Professor Brotherraymond during the Fall '11 term at BYU.

Page1 / 8

AdditionShortcuts - 2 2 0 Review Combinations of Ten • 1 = 10 5 = 10 • 8 = 10 7 = 10 • 2 = 10 6 = 10 • 4 = 10 3 = 10 • 9 =10 9 2 8 6 1 4

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online