Topic
Activities about mental math
Crazy Twos (Two to the…s)
Let your students practice manipulating exponents. Multiplication, division, roots, powers of powers. This powerful activity asks them to do some impressive mathematics in their heads. We give students...
Algebra
Number Sense
Grades 7–HS
Impress your parents at dinner
This activity is the first in our series on mental math tricks. Let your students develop their own individual way of mentally multiplying by 0.5, 5, 50, 500,...
Algebra
Number Sense
Grades 5–HS