DO YOU REMEMBER? Question Preview (ID: 19842)


We Must Do This Review The First Days In 2 ESO. So, We Know If They Remember Some Thing That Explained In 1 ESO. TEACHERS: click here for quick copy question ID numbers.

1. What is a “whole” or “counting” number?
a) A prime number
b) A composite number
c) A natural number
d) A integer number

2. A _____ number is a number greater than one whose factors are only one and itself
a) Whole
b) Prime
c) Composite
d) Factor

3. A ______ is an integer that exactly divides a given integer
a) Prime factor
b) Factor
c) Primer
d) Composite

4. What is a prime factorization of a number?
a) To list out all its factors
b) To list out all its prime factors
c) To express the number as the product of its prime factors
d) To express sum of number

5. N divides by 5 leaves a remainder
a) N is a factor of 5
b) N is not a multiple of 5
c) N is a multiple of 5
d) N is a multiple of 3

6. The Least Common Multiple (LCM).
a) LCM(3,6) = 1
b) LCM(3,6) = 6
c) LCM(3,6) = 0
d) LCM(3,6) = 18

7. The Greatest Common Factor (GCF).
a) GCF(3,4) = 24
b) GCF(3,4) = 12
c) GCF(3,4) = 4
d) GCF(3,4) = 1

8. In order to add or subtract fractions, they have to have the same ________.
a) Denominator
b) Top number
c) Bottom number
d) Numerator

9. To cancel down a fraction
a) To multiply the numerator and denominator by its GCF
b) To divide the numerator and denominator by its GCF
c) To divide the numerator and denominator by its LCM
d) To multiply the numerator and denominator by its LCM

10. Simplify 4/12
a) 1/3
b) 2/6
c) 2/3
d) 1/2

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