Question

To add 3 dollars and 35 cents to 5 dollars and 78 cents, write each amount as a decimal. Since 3.35 + 5.78=9.13, the total is 9 dollars and 13 cents. Can you add 2 hours 45 minutes to 3 hours 57 minutes by using decimal numbers (2.45 + 3.57)? Explain your reasoning.

Answer 1

3.35. +. 5.78
^ ^
3+.3+.05. 5+.7+.08
^
9.13

1
2:00+0:45
3:00+0:57
_________
5:00+ 1:02

5:00+1:00=6:00+:02=

6:02