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Multiplying comes BEFORE adding.
Remember: Please Excuse My Dear Aunt Sally for the order of operations
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Multiplication/Division
Addition/Subtraction
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How do you multiply 7 x 12?
Since 12=10+2 We first multiply 7 by 10 to get 70 and then 7 by 2 to get 14 adding these gives us our final answer: 84
How do you multiply by 10 100 and 1000?
Adding the zeros
Why do you need a common denominator when adding and subtracting fractions but not when you multiply or divide fractions?
For subtracting and adding you cannot add or subtract unalike things. For multiplication and division you can multiply by whatever you want. In some maths you even multiply by variables such as "x". Or divide by them.
How can adding doubles help you to multiply by 2 example?
By counting by 2s
What what equals 125?
25 and 5 (multiply) 100 and 25 (adding)
How do you multiply 7 x 12?
Since 12=10+2 We first multiply 7 by 10 to get 70 and then 7 by 2 to get 14 adding these gives us our final answer: 84
2 methods for finding the first 8 multiples of 10?
Keep adding 10 eight times or Multiply 10 by the first eight counting numbers
Multiply a number by 2 to get the same answer as adding a?
The answer is "double".
How do you multiply by 10 100 and 1000?
Adding the zeros
Multiply a number by 2 to get the same as adding a?
2. multiplying 2 and 2 is the same as adding 2 and 2.
Why do you need a common denominator when adding and subtracting fractions but not when you multiply or divide fractions?
For subtracting and adding you cannot add or subtract unalike things. For multiplication and division you can multiply by whatever you want. In some maths you even multiply by variables such as "x". Or divide by them.
What is 77 x 77?
5929How you get it is to first multiply 77 with 7 and get 539. Then multiply 77 by 70 by multiplying by 7 again as before, but adding a 0 on the end. That gives 5390. Then add 539 to 5390 and get 5929.
How do you work out 5x 2?
you multiply 5 by 2 which is ten or you think of adding 5 two's or adding 2 fives.
Does estimating mean multiply or divide?
None. It is more like adding.
Do you add perimeter or multiply?
Perimeter is most often found by adding.
What what equals 125?
25 and 5 (multiply) 100 and 25 (adding)
How can adding doubles help you to multiply by 2 example?
By counting by 2s
