Divisibility Rules
What is the divisibility rule for 5?
The number ends in 0 or 5.
Is 270 divisible by both 2 and 10?
Yes
What formula is used to find the volume of a rectangular prism?
Length × width × height
What do we call the answer to a multiplication problem?
Product
What is 24 × 6?
144
Is 438 divisible by 3? How do you know?
es. 4 + 3 + 8 = 15, which is divisible by 3.
What is the smallest three-digit number divisible by 9?
108
A rectangular prism measures 5 cm long, 3 cm wide, and 4 cm tall. What is its volume?
60 cm³
What do we call a number that divides evenly into another number without leaving a remainder?
Factor
What is 36 × 14?
504
Is 3,624 divisible by 4? Explain.
Yes. The last two digits, 24, are divisible by 4.
Which of these numbers is divisible by 11: 121, 123, or 125?
121
A rectangular prism has a base area of 24 square inches and a height of 7 inches. What is its volume?
168 in³
What is the name for the amount of space inside a three-dimensional solid?
Volume
What is 248 × 23?
5,704
Is 5,742 divisible by 6? Explain.
Yes. It is even, and its digits add to 18, which is divisible by 3.
Find a three-digit number divisible by 4 and 9 but NOT by 5.
108
144
216
252
288
324
396
432
468
504
576
612
648
684
756
792
828
864
936
972
A rectangular prism has a volume of 360 cm³, a length of 10 cm, and a width of 6 cm. What is its height?
6 cm
What unit is used to measure volume?
Cubic units
What is 436 × 58?
25,288
Is 83,916 divisible by 12? Prove your answer.
Yes. Its digits add to 27 (divisible by 3), and its last two digits are 16 (divisible by 4).
What is the smallest whole number greater than 100 that is divisible by 4, 6, 9, and 12?
108
A rectangular prism measures 12 × 8 × 5 cm. If every dimension is doubled, what is the new volume?
3,840 cm³
What is the answer to a division problem called?
Quotient
A school orders 125 boxes of pencils. Each box contains 48 pencils. If the school gives away 1,875 pencils, how many pencils remain?
4,125 pencils