Number Theory
Estimate 345 + 255 by rounding to the nearest hundred
300 + 300 = 600
Divide 15465 by 5
3093
Brooke has 3 strings that 3/5 meter long each. What is the total length of all the strings together?
9/5 = 1 4/5
Francesco has 2 pounds of peanuts. He used 5/6 pounds to make peanut butter. How much peanuts is left?
1 1/6
Write ninety-two thousand, three hundred fifteen in expanded form.
90,000+ 2,000+300+10+5
Estimate the quotient of 934 : 3 =
300
Asher poured 12 liters of water into an empty fish tank. If 4/5 of the fish tank was filled, find the capacity of the tank
15 liters
3/5 of the children in Millie's math class are boys.
a. What fraction of the children are girls?
b. If there are 4 girls, how many children are there in the math class?
c. How many more boys than girls are there in Millie's math class?
a. 2/5
b. 10
c. 2
Which pair numbers are composite numbers:
A. 2 & 4
B. 3 & 5
C. 25 & 11
D. 9 & 12
9 & 12
Caleb has 11 of 25 cents coins and
8 of 50 cents coins
How much money he has in total?
$6.75
A cake was cut into 11 equal pieces. Constance, her sister, & her brother took 2 pieces each. What fraction of the cake was taken?
6/11
Eloise made 5628 milliliters of lemonade. She mixed water and lemon to make the lemonade. The amount of water was 6 times the amount of lemon syrup. How much more water than syrup was used? Make a MESS!
4824
The digit 8 in 82,042 is in the _____ place
ten thousand
Avie bought a bottle of soap. She used 1/4 of the soap. If she used 5 g of soap, how much soap did she buy?
20g
How many 1/5 are in 2 1/5?
11
After giving out 18 candies to each of her 10 students, Mrs. Tan had 9 candies left. How many candies did she have at first?
189
7
Maya bought three donuts and a glass of hot chocolate cost $3.50. Each donuts costs $0.65. Find the cost of the glass of hot chocolate.
$1.55
Paul has 9 balls. Two of them are 2 red and 3 are blue. The remaining are green balls. Write the probability of drawing a green ball from the bag as a fraction
4/9
Katie's mom bought 1/4 liters of milk for her six children. How many liters of milk that she bought in total?
6/4 = 1 2/4 = 1 1/2