## Finding Unknowns In Multiplication and Division

#### Aligned To Common Core Standard:

**Grade 3 Operations** - 3.OA.4

How to Solve Equations that Involve Multiplication or Division Equations seem intimidating, and if they have multiplication and division in them, they look even scarier. As compared to other simple equations, equations that involve multiplication and division are a little bit complex. But there is always a way if there is a will to learn. Letâ€™s find out how we can solve such equations. The basic idea in mathematics is to maintain equality always. Do the same thing on the other side of the equation what you choose to do on one side. Example 1: If 2x = 6, what does x =? To solve this multiplication equation, move 2 to the other side of the equation and divide it by 6. You get the answer, which is 3. Example 2: y/5 = 2, find y? To solve this division equation, move 5 to the other side and multiply it with 2, you will get the answer for y which is 10 in this case. To solve more complex equations, remember to do it step by step and apply the opposite operation when you move the number to the other side of the equation.

### Printable Worksheets And Lessons

- Doughnut Boxes Step-by-step
Lesson- Who knew that you could cram that many doughnuts into
a box?

- Guided Lesson - Sorry
I focused a bit too much on division in this lesson. I'll get a
product based sheet to follow.

- Guided Lesson Explanation
- This one is really spread out well. It leads us to algebra situations.

- Practice Worksheet -
This is a real random assortment of problems for you. All have an
ending product or quotient though.

- Matching Worksheet - Match the missing part of the equation to the quotient or multiplication problems.

#### Homework Sheets

See if you like the critical thinking question built into every homework.

- Homework 1- Sam is filling the boxes. He can fill 4 boxes in 1 minute. How long will it take him to fill 20 boxes?
- Homework 2How many groups of 2 are 10.
- Homework 3- Farmer Bill plans to plant 20 regions of his field with corn. Using the diagram he made below.

#### Practice Worksheets

These are more geared for repetition and repeat learning.

- Practice 1- Complete all the problems.
- Practice 2- These are more math focused operations problems.
- Practice 3- Match the column A to column B.