Ten.
Multiply it by 9 and then divide the answer by 10.
1 x 99 = 99 3 x 33 = 99 9 x 11 = 99
198
99 to the nearest tenths place is 99.0
-97
Multiply by 9/10 which can be achieved bymultiplying by 9 and then dividing by 10; ormultiplying by 0.9
1 x 99, 3 x 33, 9 x 11
There are infinite numbers, but 11* 9 is fine.
9 x 111 = 999 To simplify the sum, think of it as making 99. 9 x 11 = 99 Then multiply the answer (99) and 11 by ten. That is your answer
There are 9 tenths in 9 tenths.
119
to multiply a number by 9, the numbers in your answers add up to 9. Here's a pattern: 9*1=9 9+0=9 9*2=18 1+8=9 9*3=27 2+7=9. When we get to 9*11, we get 99. 9+9=18, 1+8=9. The rule still applies to 99.