2-digit problems
16 x 43
What is 688
The janitor sweeps 33 classrooms. There are 24 chairs in each classroom. How many chairs are there in all?
What is 792
48 x 31
What is 1,488
Ella is training for a bike race. She rides 72 miles a day for 12 days. How far does she ride?
What is 864
What is 950
Mr. Blake drives 28 miles each day for 21 days. The last day he drives an additional 12 miles. Mr. Blake finds the number of miles he drives for the 21 days. If Mr. Blake uses rounding to check whether his answer is reasonable, which equation does he use?
What is
30 x 20 + 10 = 610
Henry and Natalie are writing a comic book. Henry writes 12 pages for the comic book, and Natalie writes 16 pages. They want to make one copy for each of the 62 students in their grade. How many sheets of paper will Henry and Natalie need for the 62 copies?
What is 1,736 sheets of paper
Alexei sells 35 t-shirts for $18 each and 19 sweatshirts for $27 each at the school store. How much money does Alexei collect for t-shirts and sweatshirts?
What is 1,143$
A school has 11 buses with 28 seats on each bus. There are 19 empty seats.
Part A What is the number of passengers on the buses?
The principal wants to check whether the answer is reasonable. Which numbers should the principal use in an equation to find a reasonable estimate? Select the three correct answers.
a. 10 b. 20 c. 30 d. 40 e. 50
Part B: A. B. C.