Mentally Add Larger Numbers
Using what they know about adding 10s and 100s, learners attempt to mentally solve 18 addition problems. Each problem requires them to think of the nearest 10 or 100, add them together, then add the remaining units.
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Fact Learning, Mental Computation, Estimation
Need help with mental math in your classroom? This guide is full of tips, tricks, and examples to help the teacher encourage learners to use their brain instead of a calculator. Practice problems are included with reasons how to use...
4th - 6th Math CCSS: Adaptable
Dividing Mentally 2-Digit Numbers through 99 by 1-digit Number without Remainder
Student complete division problems in their head. In this division lesson, 4th graders divide mentally by dividing the tens place, dividing the ones place, and adding the two quotients together. They complete several problems for practice.
Number and Operations: Place Value
If your learners are learning about place value and number value comparisons, this set of engaging activities and worksheets will make your job easy! Scholars use math manipulatives to estimate and then determine how many seeds a colony...
1st - 3rd Math CCSS: Adaptable
How Many Times Did You Add That?
Math whizzes practice multiplying using repeated addition. They watch a video clip from the Hershey's chocolate plant, read Hershey's Multiplication, and use grid paper to investigate multiplication as repeated addition. A page of five...
1st - 4th Math CCSS: Designed
Addition and Subtraction Pick n Mix
Teach your class how to mentally solve whole number addition and subtraction problems using compensation from tidy numbers including equal additions. They use appropriate recording techniques and predict the usefulness of strategies for...
2nd - 4th Math CCSS: Adaptable