You need to line up decimals for additional and subtraction. For multiplication, you don't need to line them up - in fact, it would serve no useful purpose.
20
5
Assuming that "adds up to" means "its digits add up to" 888
The answers are: -5*-3 = 15, -8*7 = -56 and -4*-12 = 48
1 * 6272 is the simplest answer.
Use the fact that the sum of the angles, in a triangle, adds up to 180 degrees.Use the fact that the sum of the angles, in a triangle, adds up to 180 degrees.Use the fact that the sum of the angles, in a triangle, adds up to 180 degrees.Use the fact that the sum of the angles, in a triangle, adds up to 180 degrees.
98764+1
86
You need to line up decimals for additional and subtraction. For multiplication, you don't need to line them up - in fact, it would serve no useful purpose.
There are many, in fact an infinite number, of answers. 257+0 256+1 258+(-1) . . . etc
Perfectly. In fact it adds a certain extra something to help break up what might be less interesting.
This is most often defined as the set of multiplication problems created by single-digit numbers. It includes problems from 1 x 1 to 9 x 9. Some people extend the definition to include multiplication problems up to 12 x 12.
proper fraction
-27
20
5