1.
Find the product.
A.
16
B.
9
C.
18
D.
27
Hint
2.
Find the product.
A.
45
B.
40
C.
54
D.
36
Hint
3.
Find the product.
A.
0
B.
1
C.
9
D.
90
Hint
4.
Find 9 × 9.
A.
72
B.
90
C.
81
D.
63
Hint
5.
How can patterns help you when multiplying by 9?
A.
Going from
9 × 1 to 9 × 10, the sum of the two digits in the product is always 9.
B.
The last digit of the product is always 9.
C.
The sum of the two digits in the product is always a multiple of 7.
D.
The last digit of the product is always 8 or 9.
Hint