You add when you're combining different groups or categories of items, such as when calculating the total number of possible outcomes from different events. You multiply when you're determining the total number of outcomes from multiple independent events happening simultaneously, as each outcome in one event can pair with outcomes in another. For example, if you have two dice, you would multiply the number of sides on each die (6 x 6) to find the total number of possible outcomes.
multiply first, and then add
you are suppose to MULTIPLY on area.
You multiply.
multiply
you can multiply 281 and 3 you can add 840 and 3
When you add or multiply, you can group the numbers together in any combination.
multiply first, and then add
you are suppose to MULTIPLY on area.
multiply
You multiply.
multiply
you can multiply 281 and 3 you can add 840 and 3
Multiply for the area, add for the perimeter.
you add
Add.
Multiply two odd numbers Add an even and an odd Subtract an odd and an even
You multiply them.