Work with your partner to measure objects around the room. Once you are done, you have to use your measurements to create and solve a subtraction problem.
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Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units, e.g., by using drawings (such as drawings of rulers) and equations with a symbol for the unknown number to represent the problem.
Estimate lengths using units of inches, feet, centimeters, and meters.
Measure the length of an object by selecting and using appropriate tools such as rulers, yardsticks, meter sticks, and measuring tapes.