Adding and Subtracting Multiples of 10 with a Numbers Chart

This video tutorial teaches how to add and subtract multiples of 10 using a number chart. It covers counting by tens, adding tens to two-digit numbers, making larger jumps with tens, and using game cards for practice. The tutorial also explains counting backwards by tens and subtracting tens from two-digit numbers, with examples and strategies for making larger jumps in subtraction.

If you add 30 to the number 45, what is the result?

What is the sum of 29 plus 10 plus 10 plus 20?

What is the result of 65 minus 20 minus 10?