Math Topic 3 Vocab

Question 1

is a tool that can help you add or subtract. It can begin at any number

Answer 1

open number line

Question 2

the digit that shows how many ones are in a number is called the

Answer 2

ones digit

Question 3

the digit that shows how many groups of 10 are in a number called the

Answer 3

tens digit

Question 4

is a mental math strategy you can use when you add or subtract

Answer 4

compensation

Question 5

you can _____ a number into its place value parts

Answer 5

break apart

Question 6

is math you can do in your head

Answer 6

mental math