Back to the Future
Vocab Lab
Numbers
The Facts of Math
Arithmetic
100

The number of Back to the Future movies.

What is three?

100

It is a systematic arrangement of similar objects, usually in rows and columns.

What is an array?

100

5,280 feet is this.

What is a mile?

100

EVERY single odd number has this letter in it when spelled.

What is the letter "e" ?

100

The answer to an addition problem.

What is the sum?

200

Marty McFly time travels from 1985 to 1955. How many years back in time did Marty travel?

What is 30 years?

200

The distance across a circle through its center.

What is the diameter?

200
5,000 mm = ____ m

What is 5 meters?

200

11 x 11 + 29 - 50

What is 100?

200

The answer to a subtraction problem.

What is the difference?

300

Lightning strikes Doc back to the time of 1885 from the time of 1955. How many years did Doc go back in time?

What is 70 years?

300

An angle whose measure is more than 0 degrees and less than 90 degrees.

What is an acute angle?

300

A day is 24 hours. 1.5 days is this many hours.

What is 36 hours?

300

1,350 - 225

What is 1,125?

300

The answer to a multiplication problem.

What is the product?

400

Marty's high school day starts at 8:00 AM everyday. He gets out of school at 3:00 PM. How long is Marty's school day? How many hours of school does Marty have in one week?

What is 7 hours?

What is 35 hours?

400

It's the name of the bottom number of a fraction.

What is the denominator?

400

One-fourth of $10.00 is this amount.

What is $2.50?

400

What is the value of $0.25 x 8

What is $2.00?

400
The answer to a division problem.
What is the quotient?
500

Lightning struck the clock tower at 10:04 PM sending Marty back to the future. He was at the Enchantment Under the Sea Dance just 2 hours and 34 before that. What time does that place Marty at the dance?

What is 7:30 PM?

500

An operation that undoes the other is called this.

What is an inverse operation?

500

If every person in this room received $5.00, how many dollars would the class have as a whole?

$5.00 X ___ = $_____

500

100 x 1,000

What is 100,000?

500

This property of math works for addition and multiplication, but it is does not work for subtraction and division.

(Example: 2 x 4 = 4 x 2   and   2 + 4 = 4 + 2)

What is the commutative property?

M
e
n
u