Chapter 1 vocabulary words

Find the sum: 8 + 2 + 3=

When two addends are the same

What is the difference of 10-5?

The answer to a subtraction problem is the _____________

On a number line, start at the greater addend and move forward or up by the other addend

When the addends are exactly 1 more or 1 less than the other addend

the basic facts that you use when completing fact families

addition and subtraction sentences that use the same numbers 6+7=13, 7+6=13, 13-6=7, 13-7=6

The answer to a subtraction problem

When you join together sets to find the total or sum

Find the missing addend 5 + ___ = 9

Add this near doubles fact: 5+6=

On a number line, start at the great number and MOVE BACK by the other number

The missing number in a number sentence that makes the number sentence true 5 + ___=9

Add this doubles fact: 6+6=

Any numbers you add in an addition number sentence

What is the missing related fact in this fact family? 3+4=7 4+3=7 7-4=3