My Apps Math To Do Ready
9
Look at the two sums shaded in the addition table. Why are the sums the same?
0
1
+ o
2
3
4
5
6
7
1) because 9 is greater
8
9 10
0
than 5
1
2
3
4.
5
6
7
9 10
1
1
2
3
4
5
6
7
8 9 10 11
000
because 5 and 9 are
both odd numbers
2
3
4
5
WN
11 12
6 7 8 9 1
7 8 9 10 11 12 13
()) because
3
4
5
6
5+9=9+5
4
4
5
6
8
9 10 11 12 13 14
5
in
6
7
600 v
9/10/11/12/13/14/15
because
5 x 9 = 9 x 5
6
6
8
9 10 11 12 13 14 15 16
7
7
nooo
9
10 11 12
13 14 15 16 17
in
16 17 18
00
8
10 11 12 13 14
9
10 11 12 13 14 15 16 17 18 19