Addition
9 + 5 =
14
9 - 3 =
6
16 + 12 =
28
Friends are collecting rocks. Sally found 62 and Gloria 25. How many rocks did they get in all?
87 rocks
What is an addend?
A number you add to another
12 + 14 =
26
45 - 5 =
40
40-32 =
8
There were 27 candycanes. The students ate 21 of them. How many candycanes are left?
6 candycanes
What is a sum?
The answer to an addition problem.
13 + 36 =
90
23 - 7 =
16
82-37=
45
Erin is counting cars that drive by. 36 minivans and 28 convertibles have driven by. How many cars has she counted in total?
64 cars
When a number is added to itself.
28 + 34 =
64
100 - 48 =
52
7 + 3 + 19 =
29
At the lake we saw 35 fish and some ducks. Altogether we saw 61 creatures. How many were ducks?
26 ducks
What is a difference?
The answer to a subtraction problem.
nineteen plus seventy-six equals...
95
eighty-one minus eleven equals...
70
10 + 8 - 3 =
15
Lucy had 17 m&ms, 36 Hershey kisses and 21 Skittles in her candy jar. How many pieces of chocolate did Lucy have?
53 pieces of chocolate
What is an array?
A set of rows and columns.