True or False: 6 x 600 = (6 x 6) x 100

Hannah has 38 books to put on her shelves. If each shelf can hold 7 books, how many books will Hannah have left over after filling as many shelves as she can?

15 x 20

True or False: 18x14 = (10 x 14) x (8 x 14)

26 x 42

Mr. Blanchard was getting ready for a bike race. He rode his bike each day for 17 days. He rode his bike for 40 minutes each day. How many minutes did Mr. Blanchard spend riding his bike to get ready for the race?

True or False: 90 x 7 = 70 x 9

9 x 43

5 x 79

8 x 24

6 x 78

13 x 31