Subtraction Within 20
Renee bought 15 books. 4 were fiction and the rest were nonfiction. How many were nonfiction?
11
Allison found 10 chickens on the farm and 8 goats. How many animals were on the farm total?
18
Does this key phrase indicate addition or subtraction?
how many more
subtraction
List three key words or phrases that relate to addition.
both, sum, add, combined, plus, total, in all, altogether, more
Sarah saw 12 clouds in the sky. 7 were big and the rest were small. How many were small?
5
Jose invited 3 girls and 9 boys to his birthday party. How many kids did he invite combined?
12
Does this key word indicate addition or subtraction?
both
addition
List three key words or phrases that relate to subtraction.
Any three of these:
left, less, remain, how many more, minus, take away, give away, rest
Ezra plays with 16 toy cars. 10 of them are red and some are yellow. How many are yellow?
6
Marnin ate 5 watermelons and 8 oranges. How many pieces of fruit did he eat in all?
13
Does this key word indicate addition or subtraction?
less
subtraction
Mrs. Perez gave her class 14 gifts for Christmas and 5 gifts for Halloween. How many gifts did she give altogether?
19