34.0k views
0 votes
Use close-but-easier numbers to estimate the answer to this problem
78+43

User Chan Tzish
by
4.1k points

2 Answers

3 votes
78+43=121 An easier way is to forget the the ones just add the tens 40+70=110 now add the ones 110+8+3=121 hope that helps
User Roberto Bonvallet
by
4.2k points
3 votes

Answer: 121

Explanation:

78+43=121

User Cfs
by
3.9k points