It works!
There are nine ones in the answer. 12345679 × 9 = 111111111
Just multiply one pair of your numbers to give you a product, and then multiply their product by your third number.
by moving each digits
22 x 30
five digits number when you multiply by four is the same the number when you reversed it is 21978*4 = 87912
Zero!
Yes. To see if 7 and 9 are a factor pair of 63, multiply them.
1,1242,624,31
the number one.
you multiply first then you divide
2
Multiply 54 times 54, then move the decimal over two times, as there are 2 digits in the "tenths" place.