Page 40 - PlayFacto_A4
P. 40
Addition table
Find the sum of two numbers where the numbers at the intersection of a row
and a column.
+1 2 3 4
12345
1+2
23456
2+3
Example 1 Fill in the blanks. ⑵
⑴ +6 7
3
+1 2 3 4 10
89 5 12
9 11 6 13
7 13
⑶ 8
+1 2 3 4
48
57
67 9
7 10
4. Speed mini-addition 37
Find the sum of two numbers where the numbers at the intersection of a row
and a column.
+1 2 3 4
12345
1+2
23456
2+3
Example 1 Fill in the blanks. ⑵
⑴ +6 7
3
+1 2 3 4 10
89 5 12
9 11 6 13
7 13
⑶ 8
+1 2 3 4
48
57
67 9
7 10
4. Speed mini-addition 37
