29 2 * 9 = 18 2 + 9 = 11 18 - 11 = 7
121
1
There are 15 of them.
21 and 20
55 52+52 = 50
121
1
There are 15 of them.
15 1 x 5 = 5, and 5 x 3 = 15
21 and 20
There is no one-digit number that is equal to both 14 and 28.
The Answer is 36 btw. 3 + 6 = 9 3 x 6 = 2(3x6) 2(18) = 36
412
A two digit number whose two digits added together equal 42 and multiplied together equal 82
55 52+52 = 50
No. Take 12 for example. 1+2=3 but 1x2 doesn't equal 3, it equals 2.
Only if the final digit, after the decimal point, is zero.