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Well, the normal way to check a division problem is with multiplication... if you divide 21 by 7 and come up with three, then you check that by multiplying 7 and 3, to get 21. But if you're on an abacus or something, I suppose you could say, "I came up with a result of three, which means three sevens", and then add 7 + 7 + 7 to get 21.

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โˆ™ 2010-12-30 23:21:49
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Q: How can you use addition to check division?
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Related questions

How do you check addition with division?

You don't. You can check addition with subtraction or subtraction with addition, since subtraction is the opposite of addition. Similary, you can check division with multiplication, or vice versa.

What kind of math do investment bankers use?

they use addition, subtraction, division, and multiplication

The reverse of multiplication is?


What does stratergy means?

it is called strategy and it means what you use as in multiplication,division,addition,and subtraction.

What did the Chinese use their number system for?

For calculations such as addition, subtraction, multiplication and division .... etc....

What are the four fundamental operations use in math?

Addition, subtraction, multiplication, and division.

How do you check my math solution twice when there's an equals sign?

It depends whether it is a subtraction, mulitplication, addition, or division problem.

Does addition or division come first?


How can you say that a statement is true in mathematics?

Lets say its 50-45=5. To check it, use the opposite sign. To check it would be the answer plus the bottom number. So 5+45=50. Or vice versa if it was a addition problem. If it was a division problem check would be multi. multi. problem would check divi.

Which to operations are done first division or subtraction or multiplacation or addition?

Do (multiplication/division) before you do (addition/subtraction).

Why do you check addition with subtraction?

to ensure and re-check your work you use the opposite signs (addition & subtractions, multiplication & division) e.g. __= blank 10+ _ = 12 _=2 to check: you take the answer (in this case 12) and subtract (because its the opposite of addition) by the blank you filled in (2 in this case. therefore, 12-2=10 so we know its correct :-)

How could you use addition subtraction division and multiplication of integers outside the classroom?

When you do your homework at home.

What is done first when you use the order of operations?

The operation is P.E.M.D.A.S., and each letter stands for an operation to use. P - parentheses, E - exponents, M - multiplication, D - division (multiplication and division are it doesn't matter which direction it is in. This is the same for addition and subtraction), A - addition, S - subtraction. I hope this helped :-)

Does 2x plus 3 equals 6 require addition and division?

Solving this equation for x actually requires subtraction and division rather than addition and division.

What type of addition is used to check addition?

Subtraction is used to check addition.

Performing of operations on series of numbers?

An operation on a series of numbers is when you use amongst others addition, subtraction, multiplication and division. Mathematics decided the order of operations is to work out the sums in the brackets first, then exponents, then multiplications and division and finally addition and subtraction.

Why can you use addition to check your subtraction?

Addition is the opposite of subtraction. For example, 24 - 9 = 15. If you want to check your answer, add 9 + 15. It equals 24, so your answer is correct.

How do you decide what operation you use to solve a problem?

Use BIDMAS meaning order of operations are brackets, indices, division, multiplication, addition and subtraction

How are the relationships of addition and subtraction similar to he relationship of multiplacation and division?

Multiplication is successive Addition Division is successive subtraction

How can i use multiplication to check division?

u can go plus pluse pluse

List some rules used to determine the number of significant figures and how they differ for addition and subtraction vs multiplication and division?

For multiplication/division, use the least number of significant figures (ie 6.24 * 2.0 = 12). For addition subtraction, use the least specific number (ie 28.24 - 2.1 = 26.1)

Does associative property apply to division?

The associative property does not apply to division but multiplication and addition do.

How do you solve multi step equations?

Solving • Work backward to isolate the variable and solve the equation.Multi-Step • Use subtraction to undo addition, and use addition to undo subtraction.Equations • Use multiplication to undo division, and use division to undo multiplication.

The Commutative Property does not work for which operations?

Addition and multiplication

Why you can use multiplication to check a division problem?

multiplication is the Inverse operationof division so it could be used to check my work