Page 8 - PlayFacto_B7
P. 8
2-Digit addition with regrouping
2 -Digit addition with regrouping once
1 1
29 29 29
`+``3 2 `+``3 2 `+``3 2
61
1
1
2 -Digit addition with regrouping twice 45
`+``8 7
1 132
45 45
`+``8 7 `+``8 7
2
Example 1 Fill in the blanks. 58 58
+1 4 +1 4
⑴ 58
+1 4
⑵ 79 79 79
+4 6 +4 6 +4 6
Example 2 Find the sum.
⑵ 5 5 ⑶ 6 9
⑴ 4 7 `+``5 5 `+``5 8
`+``2 7
51. The greatest sum · The least sum
2 -Digit addition with regrouping once
1 1
29 29 29
`+``3 2 `+``3 2 `+``3 2
61
1
1
2 -Digit addition with regrouping twice 45
`+``8 7
1 132
45 45
`+``8 7 `+``8 7
2
Example 1 Fill in the blanks. 58 58
+1 4 +1 4
⑴ 58
+1 4
⑵ 79 79 79
+4 6 +4 6 +4 6
Example 2 Find the sum.
⑵ 5 5 ⑶ 6 9
⑴ 4 7 `+``5 5 `+``5 8
`+``2 7
51. The greatest sum · The least sum
