The pictures on a page in a picture album are in 5 rows and 4 columns. How many pictures are on the page?
There are 20 pictures.
What unknown number makes the equation true?
8 x 6 = 6 x
8
Enter the unknown number that makes the equation true. 1 x 8 = ?
8
Enter the number that belongs in the box on the number line.
52
Example 1: What is 44 rounded to the nearest ten?
Example 2: What is 456 rounded to the nearest ten?
Example 3: What is 726 rounded to the nearest hundred?
40, 460, 700
Mary has 27 blocks. She can put 9 blocks in each bag. How many bags does she need for all 27 blocks?
What unknown number makes the equation true?
6 x 6 = 6 x 5 +
6
Enter the unknown numbers that make the equations true. 9 x 3 = ?
4 x 7 = ?
9 x 3 = 27
4 x 7 = 28
Enter the number that belongs in the box on the number line.
270
Example 1: When rounding to the nearest ten, what is the least whole number that rounds to 50?
Example 2: When rounding to the nearest ten, what is the greatest whole number that rounds to 50?
Example 3: When rounding to the nearest hundred, what is the least whole number that rounds to 500?
45, 54, 450
A penny has a mass of 3 grams. What is the mass, in grams, of 4 pennies?
3 x 4 = 12
Which equation has the same unknown value as
8 ÷ 2 = ?
A. 8 x ? = 2
B. 2 x ? = 8
C. ? / 2 = 8
D. ? / 8 = 2
B. 2 x ? = 8
Select all expressions that equal the given product.
24
6 x 4
7 x 3
9 x 2
3 x 8
4 x 5
6 x 4 = 24 and 3 x 8 = 24
Enter the two numbers that belong in the boxes on the number line.
21, 39
What unknown number makes this equation true?
763 – 96 =
667
What unknown number makes this equation true?
8 x ? = 56
7
Which equation has the same unknown value as 27 ÷ 3 = ?
A. 27 x ? = 3
B. 3 x 27 = ?
C. ? x 3 = 27
D. 3 x 27 = ?
C. ? x 3 = 27
Enter the number in the box that makes the equation true. 16 / 2 = ?
16 / 2 = 8
An input/output machine is shown.
The same rule is used for each number that is put in the machine.
Three numbers that came out of the machine are shown.
What number comes out of the machine when 15 is put in?
22
Example 1: What unknown number makes this equation true?
763 + 7 = 700 +
Example 2: What unknown number makes the equation true?
763 + 43 = 800 +
70, 6
What unknown number makes this equation true?
24 ÷ 4 = ?
6
Which equation has the same unknown value as 48 ÷ 6 = ?
A. 48 x ? = 6
B. 6 x ? = 48
C. ? / 6 = 48
D. ? / 48 = 6
B. 6 x ? = 48
Decide whether each equation is true or false. Click True or False for each equation.
5 x 6 = 10 x 3
4 x 9 = 3 x 6
8 x 4 = 4 x 8
T, F, T
There are 425 boys and 510 girls in Franklin Elementary School.
How many more girls than boys are in Franklin Elementary School?
510 - 425 = 85
Select whether each sum is greater than 80 or less than 80.
G, L, L, G