Multiplying 2-digit by 1-digit numbers Lesson 5.6 Multiplying 2-digit by 1-digit numbers

Homework Check – Pg. 98 (#7-20) 11. 196 17. 81 12. 488 18. 264 13. 70 19. 175 14. 192 20. 468 15. 116 16. 92

Review 4 x 80 = 6 x 200 = 7 x 90 = 30 x 6 =

Review – Break Apart! 42 x 4 = (_____ x 4) + (_______ x 4) 35 x 3 =

Set the purpose You have learned how to use the “breaking apart” method. Today you will learn another way to do multiplication.

Pose the Problem A school ordered 7 boxes of books. There are 25 books in each box. How can you use paper and pencil to find how many books there are altogether?

Together Multiply. 34 x 8 = 45 x 3 = 19 x 5 =

On your own Multiply. 12 x 8 = 24 x 2 = 73 x 6 =

Word Problems How many blue t-shirts are in 4 boxes? Number of T-shirts per box Color of T-shirt 45 Red 35 Blue 40 Orange 27 Green How many blue t-shirts are in 4 boxes? How many orange t-shirts are in 7 boxes?

Word Problems How many red t-shirts are in 3 boxes? Number of T-shirts per box Color of T-shirt 45 Red 35 Blue 40 Orange 27 Green How many red t-shirts are in 3 boxes? How many green t-shirts are in 3 boxes? How many more red t-shirts are there than green t-shirts in 3 boxes?

Word Problems Average rate of growth per month 5 mm Fingernails 12 mm Hair What is the average length fingernails will grow in one year?

Word Problems Average rate of growth per month 5 mm Fingernails 12 mm Hair How much longer will hair grow than fingernails in one year?

Homework Pg. 111 (#12-19)

Extra Practice

Extra Practice