Kerry is rounding numbers to the nearest thousand. Which two numbers are the smallest and largest whole numbers that she should round to 15,000?
a) 14,499 and 15,500
b) 14,500 and 15,499
c) 14,500 and 15,599
d) 14,599 and 15,400
b) 14,500 and 15,499
500 is the smallest number that rounds up to the nearest thousand. 499 is the largest number that rounds down to the nearest thousand.
100
I can show a multiplication of 5 x 3 by drawing a picture called an _______________.
Answer: Array
100
A farmer has 15 boxes of corn plants. Each box holds 45 plants. He is going to plant all of the corn plants in rows. He can plant up to 7 plants in each row. How many rows are needed to plant all of the corn plants?
a) 93
b) 96
c) 97
d) 99
Answer: 96 rows
45 plants x 15 boxes = 675 plants in all
675 / 7 = 96 remainder 3 (round down to 96)
200
Delaware became the first U.S. state in 1787. Hawaii became the fiftieth U.S. state 172 years later. In which year did Hawaii become a state?
a) 1815
b) 1859
c) 1907
d) 1959
Answer: 1959
1787 + 172 = 1959
200
Paige's new baby sister weighs 6 pounds, 10 ounces. She wants to find the baby's total weight in ounces. What is the weight of Paige's sister in ounces?
16 ounces = 1 pound
Answer = 106 ounces
6x16 = 96
96+10 + 106
200
Which number rounds to 730,000 when rounded to the nearest 10,000, and rounds to 725,000 when rounded to the nearest thousand?
a) 724,619
b) 725,419
c) 725,519
d) 726,019
b) 725,419
200
An image that is exactly the same on both sides of a dotted line. What is the name of the dotted line?
Answer: line of symmetry
200
There are 356 boys and 378 girls at the West Elm school. On the day of the school field trip to the zoo, 30 students were absent and did not go on the trip. How many students went on the trip to the zoo?
Answer: 704 students
365+378 = 734 total students at the school
734 - 30 = 704
300
Look at the number sentence below:
1,450+350=1,000+ ?
What number correctly completes the number sentence?
b) 800
1,450+350=1,800
so, 1,800-1,000=800
300
Drew wants to place 3 boxes on a shelf in his garage. Each box has a mass of 2 kilograms. What is the total mass of Drew's 3 boxes? ( 1kg = 1000g )
a) 2,000 grams
b) 3,000 grams
c) 5,000 grams
d) 6,000 grams
Answer: 6,000 grams
Each box is 2,000 grams
3 x 2,000 = 6,000 grams
300
When rounded to the nearest 1000, which two numbers round to 36,000?
a) 35,498 and 36,493
b) 35,501 and 36,491
c) 35,871 and 36,502
d) 36,063 and 36,547
Answer: 35,501 and 36,491
The 501 in 35,501 rounds the number up to 36,000 and the 491 in 36,491 round the number down to 36,000.
300
An angle is greater than 90 degrees when measured by a protractor. What do you call this kind of angle?
Answer: An obtuse angle
300
Forty years ago, the population of Northfield was 3,500. since then, the population has increased to a value that is 10 times larger. What is the population of Northfield now?
Answer: 35,000
Multiplying 3,500 by 10 gives 35,000 which adds one zero to the original value.
400
If 1,687 is added to an unknown number, the sum is 3,452. What is the unknown number?
Kate filled 4 large pitchers with water. Each pitcher holds 3 liters of water when filled. She wants to know how many total milliliters of water are in the 4 pitchers. How can Kate find the total number of milliliters?
remember 1L = 1000ml
Answer: 1200ml
Each pitcher holds 3L x 1000 = 3,000 ml
3,000ml x 4 pitchers = 12,000 ml
400
Round this number to the nearest tenth:
564.81
Answer: 564.8
400
What's in a variable...
What value of y makes the equation below true?
12-y = 3
a) 4
b) 9
c) 15
d) 36
Answer: 9
12-3 = 9
so, 12-9 = 3
400
Which list shows all the whole numbers less than 100 that are factors of 30?
a) 30, 90
b) 2, 3, 5, 6, 10, 20
c) 30, 60, 90
d) 1, 2, 3, 5, 6, 10, 15, 30
d) 1, 2, 3, 5, 6, 10, 15, 30
1x 30
2x15
3x10
5x6
500
Look at the equation below:
70 x ___ = 700
700 x ___ = 7,000
What is the correct value to make both equations true?
a) 10
Multiplying by 10 adds 1 zero to the product to increase the value of the digit moving it one place value to the left.
500
Johanna poured 2 glasses of juice from a full 1 liter container. She poured 225 milliliters into each glass. How much juice is left in the container after Johanna poured the juice into the 2 glasses?
a) 450 milliliters
b) 550 milliliters
c) 775 milliliters
d) 885 milliliters
OOPS! A decimal question!!
Which number equals 8 43/100 ?
a) 0.843
b) 8.043
c) 8.43
d) 84.3
Answer: 8.43
There are 8 whole numbers so that goes on the left side of the decimal. 43/100 is the fraction so it goes on the right side of the decimal.
500
A _____________ is a part of a whole.
Fraction
500
Miss Jones shows her class the equation 40 = 8x5.
She says that 40 is 8 times as many as 5. What is another correct meaning of this equation?
a) 5 is 8 times as many as 40
b) 8 is 5 times as many as 40
c) 8 is 40 times as many as 5
d) 40 is 5 times as many as 8
d) 40 is 5 times as many as 8
The communtative property says that if 8x5 =40 then
5x8 also = 40.