Question

Ralph bought 3 boxes with 20 pencils each and 4 boxes with 10 pens each. To find the total number of pencils and pens, Ralph evaluated 3 X 20 + 4 X 10 = 100. Is his answer reasonable? Explain.​

Answer 1

Answer:

Yes. His answer is reasonable.

Step-by-step explanation:

3 x 20 = 60

4 x 10 = 40

60 + 40 = 100

Answer 2

yes, his answer is reasonable because three times twenty is sixty, and four times ten is forty. sixty plus forty is 100.

Step-by-step explanation:

3x20=60

4x10=40

40+60=100