81 and 9 if you add them. 4 and 25 if you multiply them.
115
20
Add a 0 onto 100, or add 2 0's onto 10. Multiply by 10 = add a 0 Multiply by 100= add 00 Multiply by 1000 = add 00 Teachers prefere not to say 'add a 0'. This is like a cheat, and does not work for decimals.
Product = multiply.
To find two numbers that multiply to -100 and add up to -25, we can set up a system of equations. Let's call the two numbers x and y. We have the equations xy = -100 and x + y = -25. By solving these equations simultaneously, we can find that the two numbers are -20 and 5.
Multiply the number by 100 and add a percentage sign.
50
It's unclear whether you want two numbers that add to a sum or multiply to a product. 25 x 4 = 100 25 + 75 = 100
-100
99
120
81 and 9 if you add them. 4 and 25 if you multiply them.
125
221
-148
115