Add
1 + 0 = ?
1
7 - 3 = ?
4
1 x 3 = ?
3
21 + 41 = ?
62
What does this sign mean in math?
(+)
add
9 + 2 = ?
11
1 -1 = ?
0
2 x 2 = ?
4
88 - 70 = ?
18
What does this sign mean in math?
(-)
subtract
5 + 3 = ?
8
12 - 6 = ?
6
5 x 4 = ?
20
12 x 10 = ?
120
What does this sign mean in math?
(x)
multiply
8 + 8 = ?
16
18 - 9 = ?
9
7 x 8 = ?
56
49 + 82 = ?
131
What does this sign mean in math?
(⋅)
multiply
10 + 7 = ?
17
19 - 10 = ?
9
9 x 9 = ?
81
63 - 39 = ?
24
What are we doing with these numbers? (9)(7)
1) Adding
2) Subtracting
3) Multiplying
3) Multiplying