Mental Multiplication: Learn to Multiply Up to 99x99 in Your Head!
Teacher to Teacher Press
420 Followers
Grade Levels
5th - 9th
Subjects
Standards
CCSS5.NBT.A.1
CCSS5.NBT.A.2
Formats Included
- PDF
Pages
7 pages
Teacher to Teacher Press
420 Followers
Description
Amaze your students! With very little practice prior to class, you can multiply a pair of two-digit numbers in your head. Let them be impressed for a while; the adulation will feel great! Eventually though, they will demand that you show them the trick, even though it requires them to do math! This is a great follow-up activity to my companion lesson, “Area Multiplication”.
Includes journal prompts, homework master, extensions, Common Core standards addressed, and answer key.
Includes journal prompts, homework master, extensions, Common Core standards addressed, and answer key.
Total Pages
7 pages
Answer Key
Included
Teaching Duration
50 minutes
Report this resource to TPT
Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TPT’s content guidelines.
Standards
to see state-specific standards (only available in the US).
CCSS5.NBT.A.1
Recognize that in a multi-digit number, a digit in one place represents 10 times as much as it represents in the place to its right and 1/10 of what it represents in the place to its left.
CCSS5.NBT.A.2
Explain patterns in the number of zeros of the product when multiplying a number by powers of 10, and explain patterns in the placement of the decimal point when a decimal is multiplied or divided by a power of 10. Use whole-number exponents to denote powers of 10.
Reviews
Questions & Answers
420 Followers
