Addition
6+7
13
9-3
6
5203x0
0
464/1
464
Draw an acute angle on the board.
Answer on board.
20+13
33
12
4,543X1
4,543
56/1
56
Draw an obtuse angle on the board
Drawing on the board.
22+88
110
22-12
10
6x5
30
4/2
2
Draw a straight angle
Drawing on the board.
47+24
71
67-18
49
9x10
90
20/5
4
Draw a right angle on the board.
Drawing on the board.
234+572
806
124-72
52
12x7
84
20/20
1
How many degrees is a right angle?
90 degrees