Number Theory
Estimate 345 + 255 by rounding to the nearest hundred
300 + 300 = 600
Divide 15465 by 5
3093
Aletheia has 3 strings that 3/5 meter long each. What is the total length of all the strings together?
9/5 = 1 4/5
Harold has 2 pounds of peanuts. He used 5/6 pound 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
Titus has 7 bottles. Each bottle contained 1/4 oz of hot chocolate. How much hot chocolate was there altogether?
7/4 = 1 3/4 oz
Elias has 2 pound of butter. He used 7/8 to make a cake. How much butter is left?
1 1/8
Which pair numbers are composite numbers:
A. 2 & 4
B. 3 & 5
C. 25 & 11
D. 9 & 12
9 & 12
Zander 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. Elias, Mondo, & Luke took 2 pieces each. What fraction of the cake was taken?
6/11
Luke made 5628 milliliters of lemonade. He 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
Elspheth has 7 x 25 cents and
9 x 50 cents
How much money does she has in total?
$6.25
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
Nicholas 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
There are 9 balls in a bag. There are 2 red balls and 3 blue balls. The remaining are green balls. Write the probability of drawing a green ball from the bag as a fraction
4/9
Allison bought 5 toys at $2.90 each. She gave the cashier $20. How much change did she receive?
$5.50