Math Review with Strategies

Which value is equivalent to 700,000 + 5,000 + 200 + 10 + 9 ?

• 705,209

• 705,219

• 750,209

• 750,219

Answer explanation

Make sure you watch the zeros so you know where each number goes!

Tags

Place Value

Expanded Form

Caleb runs 8 laps around a track. Camden runs 2 times as many as Caleb. Which equation can be used to determine the number of laps Camden runs?

• 8 x 2 = ?

• 8 + 2 = ?

• 8 - 2 =?

Answer explanation

The key words are 2 times as many.

Tags

Number sentences

What is the product of 432 and 6?

• 2,482

• 2,492

• 2,582

• 2,592

Answer explanation

Don't forget to add the carry-over!

Since they all end and begin with 2, look to see what will have carry over. Since we know that 6 times 3 is 18, and we need to carry the one, the we can eliminate the numbers with 4 in the hundreds place. That leaves 2 options left. Since we know that 6 times 2 is 12, and we will have carry over, we know it will be the greater number, so it has to be 2,592.

Tags

multiplication

math vocabulary

Which statement about an acute triangle is true?

• It has one angle that is exactly 90 degrees.

• It has one angle that is greater than 90 degrees.

• It has angles that are each less than 90 degrees.

• It has angles that are each greater than 90 degrees

Answer explanation

Even though we haven't gone over triangles yet, we know our angles. Acute angles are less than 90 degrees. So we can infer that an acute triangle has angles that are less than 90 degrees.

Tags

Geometry

Angles

Triangles

Which mixed number is equivalent to 13/3 ?

• 3 1/3

• 3 2/3

• 4 1/3

• 4 2/3

Answer explanation

To convert an improper to a mixed fraction, divide the numerator by the denominator to find the whole number. The remainder is the numerator.

13 divided by 3 is 4 with a remainder of 1.

Tags

Fractions

Mixed Numbers

Improper Fractions

What was the most common amount of food that was wasted?

• 1/8
• 1/4
• 3/4
• 7/8

Answer explanation

Which part of the line plot had the most?

Tags

line Plot

What is the difference between the longest ribbon and the shortest ribbon?

• 3/4 feet

• 1/2 feet

• 1/3 feet

• 1/4 feet

Answer explanation

It is asking for the difference, so we know we need to SUBTRACT.

3/4 - 1/4 = 2/4.

Notice the answer options only had the simplest version, so 2/4 divided by 2/2 = 1/2.

Tags

line Plot

subtracting fractions

What is the rule for the number pattern shown below? 64, 32, 16, 8, . . .

• subtract 8

• divide by 2

• divide by 8

• multiply by 2

Answer explanation

Since the numbers decrease in size, we know it is NOT multiplication. So that gets rid of one option. 64 - 8 does NOT equal 32, so that gets rid of that answer option as well. 4 divided by 2 = 2, and 60 divided by 2 is 30, so we know the answer option is divided by 2.

Tags

Number patterns

What is the missing value in the equation shown below?

? x ³/₆ = 15 x ¹/₆

• 3

• 5

• 12

• 18

Answer explanation

As a reminder, when we multiply a fraction by a whole number, we only multiply the whole number by the numerator. 15 x 1 is 15, so we think what times 3 is 15? We know then the answer is 5.

Tags

Multiplying Fractions

Multiplication Comparison

Emily has 5 times as many red apples as she has green apples. If she has 20 red apples, how many green apples does she have?

• 4

• 15

• 25

• 100

Answer explanation

This one has some tricky wording, make sure you read the WHOLE problem.

We know how many red apples she has. 20. We also know that she has 5 times as many red than green.

In order to find how many GREEN apples, you need to divide.

Since we now she has more red apples than green apples, we can eliminate the two options that are greater than 20. That leaves 2 options left.

15 is too high a number to get if you are dividing by 20, so the only option left is 4.

Tags

Word problem

Division