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Topic 1

Understanding Addition & Subtraction

part one piece of a whole
plus added to
sum the amount in all after you add
add join groups together
addition sentence sentence showing numbers added together to equal a sum example: 3 + 4 = 7
digit single number (0,1,2,3,4,5,6,7,8,9) All numbers are created using these digits.
equal means "the same as"
whole two or more parts added together
join put together
difference the amount that is left after you subtract
minus to take away or subtract
subtraction sentence sentence showing numbers subtracted to equal a difference example: 8 - 4 = 4
subtract find out how many are left or which group has more
separate can mean to subtract
fewer having a lesser amount
more a group with a greater number
related addition and subtraction sentences with the same numbers
fact family a group of related addition and subtraction facts
Created by: ShelleyQ