Grade 5

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Fifth grade mathematics is about (1) developing fluency with addition and subtraction of fractions, and developing understanding of the multiplication of fractions and of division of fractions in limited cases (unit fractions divided by whole numbers and whole numbers divided by unit fractions); (2)extending division to two-digit divisors, integrating decimal fractions into the place value
system and developing understanding of operations with decimals to hundredths, and developing fluency with whole number and decimal operations; and (3) developing understanding of volume.

 
Resources:
Cover of Go Math!, Grade 5-With Practice Book 12 (ISBN 978-0547643229)
GO MATH Standards Book
G0 MATH Practice Book

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Decimal Place Value
Long Division with 2 Digit Divisors
Add, Subtract, Multiply, Divide with Decimals
Zeros in the Dividend

Unlike Denominators-LCD-Adding and Subtracting Fractions
Least Common Denominator