Subtraction
25-13=
12
27 -14 =
no 27 -14 ------- 13
45 -21=
45 -21 ----- 24
50-27=
23
There were 27 kids working at a table. The teacher called 3 of them away to read together. How many were left at the table?
27-3=24 There are 24 children left working at the table.
28-4=
24
56 -29 =
yes 56 -29 ------- 27
50 -26 =
50 -26 ------ 24
31-19=
12
There were 159 red and blue balloons. If 117 of them were red, how many were blue?
159-117=42 There were 42 blue balloons.
139-8=
131
578 -142 =
no 578 -142 ------- 436
90 - 11=
90 - 11 ------ 79
61-25=
36
There were 66 students at the assembly. Then, 45 got up and sang a song. How many students were left in the audience?
66 - 45 =21 There were 21 students in the audience.
120-10=
120-10=110
843 -370 =
yes 843 -370 ------- 473
188 -88 =
188 -88= ------100
80-21=
59
There are 71 chickens in the coop. Only 49 of them laid eggs. How many chickens did not lay an egg?
71 - 49 = 22 There were 22 chickens that did not lay an egg.
150-20=
130
700-245=
yes 700-245=455
79 -26 =
79 -26 ----- 53
83-24=
59
Mrs. Yeager had 168 stickers. She went to the store and bought 12 more stickers. How many stickers does she have in all?
168+12=180 stickers.