Stacy multiplied 5x9 and said the answer was 44.what two patterns could you use to show that her answer is not correct?
Multiples of 5 end in 5 or 0.
The digits of multiples of 9 add up to 9.
posted by Ms. Sue
he can use the finger trick ad count by 5's or he can think as it 9x6 but swicth the numbers around.posted by taylor