Adding
10 + 10
20
20 - 1
19
What do you call a figure with 3 sides?
triangle
There are 3 goats in the barn. 4 more goats come in. How many goats are in the barn?
7
2 x 2
4
20 + 4
24
20 - 4
16
How many sides does a square have?
4
There are 6 monkeys in the tree. 5 monkeys leave. How many monkeys are still in the tree?
1
3 x 3
9
10 + 10 + 1
21
15 - 8
7
How many sides does a pentagon have?
5
There are 2 blue pens and 3 red pens in the drawer. How many pens are in the drawer?
5
4 x 4
16
11 + 4
15
16 - 15
1
What do you call a figure with 6 sides?
hexagon
Jim had 12 cupcakes. He gave 10 cupcakes away to friends. How many cupcakes does he have left?
2
5 x 5
25
4 + 4 + 4
12
(20 - 10) - 10
0
What do you call a 4 sided figure with all sides the same length?
square
Jill has 4 red crayons, 6 blue crayons and 1 yellow crayon. How many crayons does she have?
11
10 x 10
100