Chapter 1 Review

10x or 1/10 of

100

5 is 1/10 of

50 

5= 1/10 of 50

or Uses place value chart

200

10 times as much as 700 is

7000

700 x 10= 7000

Use a place value chart

or 10x700=7000

300

1/10 of 0.2 is_____

0.02

1/10 of 0.2= 0.02

Uses place value chart

400

0.09 is 10 times as much as

0.009

0.09= 10 x 0.009

or place value chart

500

How many times smaller is the value of the number 7 in 43, 789 than the 7 in the digit 57, 679?

The value of the number 7 in 43,789 is 10x smaller than the 7 in the digit 57, 679. In the place value chart the 7 in 43,789 is to the right in the tens place and the 7 in 57,670 is to the left of it making it 10x bigger. It is not 1/10 because the question is asking how many times smaller is one digit in one number than the other digit in another number.

Value

100

What is the value of the  7 in 4,271,321?

70,000

Use a place value chart or 

7 x 10,000= 70,000

200

What is the value of the 4, in the digits 0.476?

0.4 or 4 tenths

Used place value chart or 

fraction to determine response above or 

expanded form such as 1/10x 0.4

300

What is the value of the seven in 5.987?

seven thousandths or 0.007

Uses place value

expanded form or fraction form to determine answer above

400

 What is the value of the 7 in the highest place value in the number: 17,246,357?

7,000,000

7x10,000,000

or uses expanded form or 

place value

500

The value of a number in the thousandths place is the midpoint on a number line

the number in the ones place is twice the number in the thousandths place

the number in the tenths place is one less than the digit in the ones and tens place

the number in the hundredths place is an even number less than 4. What's my number?

10.925

Exponents

100

A base in an exponent is:

The number that is being multiplied repeatedly.

200

An exponent is 

The number of times you multiply a whole number or base.

300

10⁴

10,000

10x10x10x10=10,000

or count the number of zeros

400

2x10^{2 =}

200

2x 10x10=

2x100=200

500

10⁰ is equal to what? If you continue the pattern, what is 5 x10^5?

10⁰=1

5x10⁰=5                5x10⁴=50,000

5x10¹=50               5x10⁵=500,000

5x10²=500            5x10⁶=5,000,000

5x10³⁼5,000 

Mental Math

100

Solve: 

80 x 200 = ________________

16,000

200

Solve: 

500 x 0 = _______________

 

0

Identify the property of 0--states any number times zero is zero.

300

Solve: 

8x500=__________

4,000

Multiply Basic facts then add zeros

400

Fill in the missing blank:

35,000= ____ x _____

7x 5000

0r 5x 7000

or any other reasonable answer that determines 35,000

500

True or False

Every time you add a zero to a product that is multiplied by a 10, 100, 1000, the value of the product increases by the amount multiplied.

True: When we multiply any factor by 10, 100, or 1,000 the value of the product will increase by that amount.