Solve multi-step real-world and mathematical problems, involving decimal numbers, rationals, percents, or any combination of these.

Watch these Khan Academy videos:

- Adding & subtracting rational numbers: 79% - 79.1 - 58 1/10
- Adding & subtracting rational numbers: 0.79 - 4/3 - 1/2 + 150%
- Adding & subtracting fractions
- Rational number word problem: school report
- Rational number word problem: cosmetics
- Rational number word problem: cab
- Converting decimals to fractions 2 (ex 1)
- Converting decimals to fractions 2 (ex 2)

Do these Khan Academy exercises:

Next, give your students these challenges:

- Building with Solid Shapes by NRICH
- Junior Frogs by NRICH
- The Thousands Game by NRICH

Conclude by leading this investigation:

Plastic Fraction Circles

by MathPickle

7.EE.B.3: Solve multi-step real-life and mathematical problems posed with positive and negative rational numbers in any form (whole numbers, fractions, and decimals), using tools strategically. Apply properties of operations to calculate with numbers in any form; convert between forms as appropriate; and assess the reasonableness of answers using mental computation and estimation strategies. *For example: If a woman making $25 an hour gets a 10% raise, she will make an additional 1/10 of her salary an hour, or $2.50, for a new salary of $27.50. If you want to place a towel bar 9 3/4 inches long in the center of a door that is 27 1/2 inches wide, you will need to place the bar about 9 inches from each edge; this estimate can be used as a check on the exact computation.*