G23.M3.S5.Q2

Expand and multiply 2 x 14

• 48

• 38

• 28

Expand and multiply 4 x 25. ​ (a)  

• 100
• 200
• 300

Expand and multiply 3 x 13.

​ (a)  

• 39
• 29
• 49

To multiply 8 x 21, which number should we expand and how?

a

21 = ( 20 + 1)

8 = ( 4 + 4)

To multiply 7 x 13, which number should we expand and how?

a

7 = ( 3 + 4)

13 = ( 10 + 3)

Expand and multiply 2 x 16.

• 22

• 32

Solve 34 x 0 = ?