3rd Grade Math
how many groups of 9 are in 72?
8 groups of 9 because
72 ÷ 9 = 8
a circle is cut into 8 equal sized parts. what fraction of the circle is each part?
1/8
what is the number 88,678 rounded to the nearest thousand?
89,000
what mixed number is equivalent to 13/3?
4 1/3
what is the value of 32 x 104?
320,000
a square has side lengths of 3 feet. what is the area of the square?
9
squares have the same length and width so
3 x 3 = 9
what fraction is equivalent to 2/8?
1/4
which comparison is true?
a. 1/4 < 2/8
b. 1/3 > 3/6
c. 3/6 = 5/8
d. 2/3 = 4/6
d. 2/3 = 4/6
multiply the numerator and denominator by 2.
2 x 2 = 4
3 x 2 = 6
what digit will be in the tens place after 8,642 is divided by 10?
6
8,642 ÷ 10 = 864.2
which expression has a value less than 1 1/2?
a. 1 1/2 x 3/2
b. 1 1/2 x 1/2
c. 1 1/2 x 2
d. 1 1/2 x 1
b. 1 1/2 x 1/2
a value (1 1/2) multiplied by a smaller value (1/2) will result in a value smaller than the original value (1 1/2)
mr. john buys 5 packs of notebooks. each pack has 6 notebooks. he gives an equal number of notebooks to each of his 3 children. how many notebooks does each child get?
a. 8
b. 10
c. 11
d. 14
b. 10
5 packs x 6 in each pack = 30 total notebooks
30 notebooks ÷ 3 children = 10 notebooks each
what value is equivalent to 700,000 + 5,000 + 200 + 10 + 9?
705,219
what is the value of 24 x 11?
264
a mall parking lot has 2,232 parking spaces. there are 24 parking spaces in each row. how many rows are in the parking lot?
93 rows
2,232 ÷ 24 = 93
ms. roman buys 3.5 pounds of birdseed. she pays $4.28 per pound. how much did ms. roman pay for all of the birdseed?
$14.98
3.5 x $4.28 = $14.98
which expression is equivalent to 4 x (3 x 2)?
a. 2 + (3 + 4)
b. 3 x (4 x 2)
c. 2 x (4 + 3)
d. 3 + (2 x 4)
b. 3 x (4 x 2)
if it is all multiplication, it does not matter in which you multiply the numbers.
which statement about an acute triangle is true?
a. it has one angle that is exactly 90 degrees
b. it has one angle the is greater than 90 degrees
c. it has angles that are each less than 90 degrees
d. it has angles that are each greater than 90 degrees
c. it has angles that are each less than 90 degrees
remember:
acute angles are less than 90 degrees
right angles are 90 degrees
obtuse angles are greater than 90 degrees
what is the product of 432 and 6?
2,592
a cook in a restaurant has 13 gallons of milk. how much milk, in quarts, does the cook have?
52 quarts
1 gallon = 4 quarts
13 gallons x 4 quarts = 52 quarts
there are 210 apples placed equally into 14 boxes. how many apples are in each box?
15 apples
210 apples ÷ 14 boxes = 15 apples per box
a rule was used to create the number pattern shown below.
?, 9, ?, 21, 27
what two numbers are missing from the pattern?
a. 3 and 12
b. 3 and 15
c. 6 and 12
d. 6 and 15
b. 3 and 15
3, 9, 15, 21, 27
add by 6 every time, starting at 3.
what is the rule for the number pattern down below?
64, 32, 16, 8, ...
divide by 2
64 ÷ 2 = 32
32 ÷ 2 = 16
16 ÷ 2 = 8
and so on..
what is the value of 7,225 ÷ 6?
1,204 remainder 1
andre is using a 15 foot piece of ribbon for an art project. he cuts the ribbon into equal sized pieces 1/3 foot in length. using all of the ribbon, how many pieces of ribbon does andre cut?
45 pieces
1 feet of ribbon = 3 pieces of 1/3 foot long ribbons
15 foot ribbon = 15 foot x 3 pieces per foot = 45 pieces in total
adam opens a 1/2 pound can of tuna. he uses all the tuna to feed his cats. he puts an equal amount of tuna in 4 containers for his cats. how much tuna is in each container?
1/8 pounds
1/2 pound ÷ 4 containers
keep (the 1/2) change (the sign, ÷ into x) flip (the 4, 4 = 4/1, 4/1 flipped is 1/4)
1/2 x 1/4 = 1/8