Khan Academy

Worked example: Subtracting 3-digit numbers (regrouping twice) (K-A)

Worked example: Subtracting 3-digit numbers (regrouping) (K-A)

Identifying numerators and denominators (K-A)

Recognize fractions (K-A)

Recognizing fractions greater than 1 (K-A)

Fraction word problem: spider eyes (K-A)

Fraction word problem: piano (K-A)

Fraction word problem: pizza (K-A)

Adding fractions with like denominators (K-A)

Subtracting fractions with like denominators (K-A)

Intro to adding mixed numbers (K-A)

Intro to subtracting mixed numbers (K-A)

Fraction word problem: lizard (K-A)

Subtracting mixed numbers with like denominators word problem (K-A)

Adding multi-digit numbers: 48,029+233,930 (K-A)

Relate place value to standard algorithm for multi-digit addition (K-A)

Common denominators: 1/4 and 5/6 (K-A)

Common denominators: 3/5 and 7/2 (K-A)

Finding common denominators (K-A)

Common fractions and decimals (K-A)

Common fractions (halves) (K-A)

Comparing decimals (tenths and hundredths) (K-A)

Comparing decimal numbers on a number line (K-A)

Comparing decimals visually (K-A)

Comparing numbers represented different ways (K-A)