4rd Grade

Question 1

What is an equivalent fraction

Answer 1

Fractions are equivalent if they are equal or represent the same amout 1/2 == 4/8

Question 2

What is the purpose of having a common denominator on fractions?

Answer 2

Having common denominators makes things like comparing, adding, and substracting fractions easier

Question 3

How can we found a common denominator for 2 or more fractions?

Answer 3

We need to list the multiples of each denominator until we find the smallest multiple they have in common

Question 4

How can we compare fractions?

Answer 4

We can compare fractions by seeing which one takes up a greater portion of the same whole

Question 5

What is an improper fraction?

Answer 5

Is a fraction where the numerator is greater than or eaqul to the denominator

9/4, 5/3, 10/2

Question 6

What is a mixed number(numero mixto)?

Answer 6

It´s a numberconsisting of a whole number and a proper fraction

4 1/2

1 3/8

12 5/6

Question 7

How can we re-weite a mixed number as an improper fraction?

3 4/5

Answer 7

Question 8

How can we re-write an improper fraction as a mixed number?

10/3

Answer 8

Question 9

How can we write a decimal as a fraction?

Answer 9

We write the decimal number as a numerator and we write its place value as the denominator

Question 10

In a decimal number, what happens if we have a number to the left of the decimal point?

Answer 10

We keep that number as a whole number

Question 11

re-write 0.07 and 2.1 as a fraction

Answer 11

Question 12

Resolver estas fracciones a decimales

1/2

1/4

1/5

Answer 12

1/2 = 0.5

1/4 = 0.25

1/5 = 0.2

Question 13

What measure Volume?

Answer 13

Volume measure capacity

Question 14

What is the most common units of volume are?

Answer 14

millimiters and liters

Question 15

1 liter into milliliters?

Answer 15

1 liter = 1000 milliliters

Question 16

8 liters = ? milliliters

Answer 16

8 liters = 8.000 milliliters

Question 17

45 ml = ? L

Answer 17

45 ml = 45/1000 = 0.045 ml

Question 18

What is distance?

Answer 18

espacio considerado desde una perspectiva lineal, entre una persona o cosa y otra

Question 19

Name the most common unites of distance?

Answer 19

millimeters, centimeters, meters and kilometers

Question 20

1 centimeter = ? millimiters

1 meter = ? centimeters

1 meter = ? millimeters

1 kilometer = ? meter

Answer 20

1 centimeter = 10 millimeters

1 meter = 100 centimeters

1 meter = 1000 millimeters

1 kilometer = 1000 meters

Question 21

1 foot = ? inches

1 yard = ? feet

1 yard = ? inches

1 mile = ? yards

Answer 21

1 foot = 12 inches

1 yard = 3 feet

1 yard = 36 inches

1 mile = 1760 yards

Question 22

What is a line?

Answer 22

a line extends forever in both directions

Question 23

What is a line segment

Answer 23

is just part of a line, it has two endpoints

Question 24

what is a ray?

Answer 24

a ray starts at one poing and continues on forever in one direction

Question 25

what is a perpendicular line?

Answer 25

are lines that meet at right angles

Question 26

what is a parallel line

Answer 26

lines that are always the same distance apart from each other, they will never meet

Question 27

What is an angle?

Answer 27

is a two rays that share a vertex

Question 28

What is a vertex?

Answer 28

typically means a corner or a point where lines meet, the plural is vertices

Question 29

What is an acute angle in degrees

Answer 29

between 0º and 90º

Question 30

What is a right angle in degrees

Answer 30

exactly 90º

Question 31

What is a obtuse angle in degrees

Answer 31

between 90º and º80 º

Question 32

What is a straight angle in degrees

Answer 32

exactly 180º

Question 33

What is a line of symmetry?

Answer 33

is a line where we can fold the image and have both halves match exactly

Question 34

When shapes are symmetrical figures?

Answer 34

if they have at least one line of symmetry on them

Question 35

What is an acute(agudo) triangle

Answer 35

An acute triangle has 3 angles that each measure less than 90º

Question 36

What is a right(recto) triangle

Answer 36

it has 1 angle that measures 90º and 2 acute angles

Question 37

What is an obtuse triangle

Answer 37

it has one angle that measures more than 90º and 2 acute angles

Question 38

What is a equilateral triangle?

Answer 38

it has 3 equal sides

Question 39

What is an isosceles triangle?

Answer 39

it has at least two equal sides

Question 40

What is a scalene triangle?

Answer 40

it has NO equal sides

Question 41

Resume all these quadrilaterals? quadrilateral parallelogram trapezoid rectangle rhombus square

Answer 41

Question 42

What are factors?

Answer 42

factors are whole numbers that can evenly divide another number

Question 43

Name a purpose of a factor number?

Answer 43

It gives us a way to break down a number into smaller pieces

Question 44

What is a factor pair?

Answer 44

are two numbers that we multiply together to get a certain product. To get the product of 8, we can multiply 1 x 8, and 2 x 4. So the factor pairs for 8 are 1 and 8 and 2 and 4

Question 45

Which number is a factor of all numbers?

Answer 45

1

Question 46

What are multiples numbers?

Answer 46

Un múltiplo de un número es el que lo contiene un número entero de veces. En otras palabras, un múltiplo es un número tal que, dividido por a, da por resultado un número entero (el resto de la división euclídea es cero). are numbers that result when we multiply one whole number by another whole number. the first four multiples of 3 are: 3, 6, 9, and 12 3 x 1 = 3 3 x 2 = 6 3 x 3 = 9 3 x 4 = 12 some other multiples of 3 are 15, 30, 300 3 x 5 = 15 3 x 10 = 30 3 x 100 = 300

Question 47

How can we identifyin multiples?

Answer 47

we can check to see if a number is a multiple of another number by seeing if it can be divided evenly by the number 15 is a multiple of 3 because 15 % 3 = 5 17 is not a multiple of 3 because 17 % 3 = 5 R 2

Question 48

How do factors and mutiples relate? why 4 and 7 are factors of 28?

Answer 48

4 and 7 are both factors of 28 because they both divide evenly into 28

Question 49

We can divide almost all numbers into...?

Answer 49

two categories: prime numbers (números primos) and composite numbers (numeros compuestos)

Question 50

What is a prime number?

Answer 50

numbers with exactly 2 factors the only factors are 1 and the number itself

Question 51

what is a composite number?

Answer 51

numbers that have more than 2 factors. It has factors in addition to 1 and the number itself

Question 52

1 foot = ? inches

Answer 52

1 foot = 12 inches

Question 53

1 yard = ? feet

Answer 53

1 yard = 3 feet

Question 54

1 yard = ? inches

Answer 54

1 yard = 36 inches

Question 55

1 mile = ? yards

Answer 55

1 mile = 1760 yards

Question 56

1 pound = ? ounces

Answer 56

1 pound = 16 ounces