Vocabulary
product of addition
sum
addition
decrease
subtraction
The boy had 4 red apples and 5 yellow apples. How many apples in all?
9
10 + 15=
25
product of subtraction
difference
M
multiplication
combined
add
Jim had 4 hats. Jill had 12 hats. How many more did Jill have?
8
55- 10=
45
taking ten ones from the ones and giving it to the tens
regrouping
S
subtraction
how many more
subtract
There were 15 pencils in class. Today there are 8 fewer. How many?
7
8 + 12=
20
number to be subtracted
subtrahend
7- (7+6)
Do ? first
Parentheses
increase
addition
The temp increased 10 degrees today. Yesterday it was 15 degrees. What is the temp?
25
16 + 5=
21
taking 10 ones from the tens and giving it to the ones
borrowing
9-6+6
Do ? second
Add
difference
subtract
He scored 5 points in game 1 and 6 points in game 2. Combined, how many points were scored?
11
13 + 23=
36