Mental Math: Subtract Hundreds
In this subtraction instructional activity, 3rd graders study a mathematical scenario about 2 airplanes and then answer/solve 5 problems involving subtracting hundreds.
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Mental Math: Subtract Hundreds - Problem Solving 22.1
Four word problems are presented to second graders. For each, they can use their mental math skills to quickly subtract hundreds and arrive at an answer. This is a terrific inclusion for your Common Core math curriculum.
1st - 3rd Math CCSS: Adaptable
Adding/Subtracting Whole Numbers in Your Head
Exercise those mental math muscles! This instructional activity contains 10 addition and 10 subtraction problems which require learners to compute sums or differences in their heads. A quick review at the top of the page provides a...
2nd - 3rd Math CCSS: Adaptable
Initial Fraction Ideas Lesson 23: Overview
Celebrate young mathematicians' ability to compare, add, and subtract fractions with this math review lesson. To demonstrate their newly acquired knowledge, children solve a series of fraction word problems, explaining their solutions in...
3rd - 6th Math CCSS: Adaptable