Erica used friendly numbers to find 43-19. She added 1 to 19 and subtracted 1 from 43. What is Erica's error?
2 answers:
I think that it is....
42-20=22
She could have added 1 to 19 to give 20 then subtracted this from 43 to give 23. Then she can add the 1 to 23 to get the correct answer which is 24.
You might be interested in
between 14 and 15
because
14^2 = 196
15^2 = 225
Answer:
15
Step-by-step explanation:
Answer:
It's 5 x 10 power 4
Please make Brainlist
Draw 15 circles then draw + 7 circles add them together you get 22
It depends on the fraction
