IM Video Lessons: Unit 5 (click here for the Digital Student Book Link)
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Adding Decimals
When ADDING and SUBTRACTING DECIMALS- Line up the decimals!!!
LOOK at your answer, does it make sense?
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Multiplying Decimals
- When MULTIPLYING Decimals, order does not matter when listing them! Be sure to count the number of digits to the right of ALL the decimals and before placing your decimal into your answer.
- LOOK at your answer, does it make sense?
NumberRock Video: Mutiplying Decimals
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Dividing Decimals
Hint: How can you get rid of the decimal? Can you get rid of the decimal in some way?
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The Distributive Property
- The Distributive Property is easy to remember, if you recall that "multiplication distributes over addition". Formally, they write this property as "a(b + c) = ab + ac". In numbers, this means, for example, that 2(3 + 4) = 2×3 + 2×4.
Converting Decimals to Fractions
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Long Division
- The division is a method of distributing a group of things into equal parts.
- The division is the opposite of multiplication.
- If 3 groups of 4 make 12 in multiplication; 12 divided into 3 equal groups give 4 in each group in division.
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