NBT IAB Review

NBT IAB Review

By: Ms. Northrup

• An inequality refers to things like 8.65 > 5.74 and 98 < 100

• Part-Part-Whole or

  Fact Families

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What do you already remember about fact families?

Some key concepts to remember!

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Fact Families/Part-Part-Whole

Watch this short video for a brief reminder!​

Let me know if you have any questions!

• Chromebooks

• Scratch paper titled NBT IAB Review. Name, Date, Title, Holes on LEFT

• Ready to review for the IAB that you're taking TOMORROW

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You are not using whiteboards because some of you treat them like toys. That is all.

Materials to have Ready:

Multiple Choice

Which makes this inequality true?

9.371 > ?

• 9.4

• 9.73

• 9.36

• 9.377

Remember, first stack the problem! Then move your decimal out, keep track of how many times!

Multiply as usual, then move the decimal back!​

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Questions?​

How'd you do?

Ollie took his sister Rory to the shop to buy some candy.

The models show before the shop and after.

Each large square represents $1.00

Each small square represents $.25

Use the model to understand the amount of money they spent at the store.​

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​Use this model for your next question!

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​Before the shop:

​After leaving the shop:

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Multiple Choice

Which equation has the same unknown value as

4.24 -  = 1.65

Remember your fact families! Part-part-whole!

• 4.24 - 1.65 = 

•  - 1.65 = 4.24

• 4.24 +  = 1.65

• 1.65 -  = 4.24

Multiple Choice

Which equation shows a correct strategy for the expression shown?

$$0.8\ \times0.4$$  

• $$\frac{8}{10}\times\frac{4}{10}=\frac{32}{10}$$  

• $$\frac{8}{10}\times\frac{4}{10}=\frac{32}{100}$$  

• $$\frac{8}{100}\times\frac{4}{100}=\frac{32}{100}$$  

• $$\frac{8}{100}\times\frac{4}{100}=\frac{32}{10,000}$$  

Remember, multiply both the numerator and the denominator!

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Questions?

How'd you do?

Multiple Choice

Select the symbol that correctly completes the comparison/inequality

0.03 __ 0.3

• $$<$$  

• $$>$$  

• $$=$$   

​Here's why!

Multiple Choice

Select the symbol that correctly completes the comparison/inequality

27.6 _ 27.600

• $$<$$  

• $$>$$  

• $$=$$  

Multiple Choice

Select the symbol that correctly completes the comparison/inequality

49.3 _49.31

• $$<$$  

• $$>$$  

• $$=$$  

This next one might be tricky!

Here is an helpful example before you try one on your own!

Multiple Choice

$$\frac{2756}{22}=\frac{2200}{22}+\frac{?}{22}+\frac{54}{22}+\frac{2}{22}$$  

Choose the missing numerator to complete the statement above.

• 700

• 500

• 400

• 50

Multiple Choice

Which has the same unknown value as

$$56.2-22.97=▉$$  

• $$▉-22.27=56.2$$  

• $$22.27+▉=56.2$$  

• $$▉-56.2=22.27$$  

• $$56.5+▉=22.27$$  

Multiple Choice

Determine if the inequality is true or false

$$7.8=7.88$$  

• True

• False

Multiple Choice

Determine if the inequality is true or false

$$3.4\ >\ 1.64$$  

• True

• False

Multiple Choice

Determine if the inequality is true or false

$$5.9\ <\ 8.5$$  

• True

• False

That was a TON of EXCELLENT Math Review! Let's take a brain break now of the class' choosing as a reward for your hard work!

And a Mighty Oh-Yeah!​

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Do you feel ready for the IAB now? You should!​

Congratulations!​