6th Grade End of Year Review - Math 1

Front

A letter/symbol that takes the place of an unknown number.

Back

Variable

Answer explanation

A variable is a letter or symbol used in mathematics to represent an unknown number. Unlike fractions, differences, or proportions, which have specific meanings, a variable specifically denotes an unspecified value.

Front

A number multiplied by itself, and by itself again.

Back

Cubed

Answer explanation

The question describes a number multiplied by itself and then by itself again, which is the definition of cubing a number. Therefore, the correct answer is 'Cubed', as it represents raising a number to the power of three.

Front

A quarter of a plane divided by a x and y axis

Back

Quadrant

Answer explanation

A quarter of a plane divided by the x and y axes is called a quadrant. Each quadrant represents one of the four sections of the Cartesian plane, making 'Quadrant' the correct answer.

Front

3 x 3 x 3 x 3

Back

3 to the 4th power

Answer explanation

The expression 3x3x3x3 can be rewritten using exponents as 3 raised to the 4th power, since it represents multiplying 3 by itself 4 times. Therefore, the correct answer is 3 to the 4th power.

Front

49.96 - 29.64

Back

20.32

Answer explanation

To find 49.96 - 29.64, subtract the two numbers: 49.96 - 29.64 = 20.32. Therefore, the correct answer is 20.32.

Front

GCF of 81 & 9

Back

9

Answer explanation

The GCF (Greatest Common Factor) of 81 and 9 is 9, as 9 is the largest number that divides both without leaving a remainder. The factors of 81 are 1, 3, 9, 27, and 81, while the factors of 9 are 1, 3, and 9.

Front

LCM of 3 & 5

Back

15

Answer explanation

The LCM (Least Common Multiple) of 3 and 5 is the smallest number that both can divide without a remainder. Since 3 and 5 are prime, their LCM is simply their product: 3 x 5 = 15. Thus, the correct answer is 15.

Front

What is 40% of 400?

Back

160

Answer explanation

To find 40% of 400, multiply 400 by 0.40. This gives you 160, which is the correct answer. Therefore, 40% of 400 is 160.

Front

1/2 is equal to?

Back

50%

Answer explanation

1/2 is equivalent to 50% because 1 divided by 2 equals 0.5, which is the decimal form of 50%. Therefore, the correct answer is 50%.

Front

Robyn had some video games then bought 4 more. Now she has a total of 10 games. What equation matches this situation?

Back

v + 4 = 10

Answer explanation

Robyn initially had v video games and bought 4 more, resulting in a total of 10 games. The equation that represents this situation is v + 4 = 10, as it correctly shows the total after the purchase.