Unstoppable Fours
Name the first six multiples of 4
4, 8, 12, 16, 20
Name the first 6 multiples of 7.
7, 14, 21, 28, 35, 42
Name the first nine square numbers.
4, 9, 16, 25, 36, 49, 64, 81
Name the first 6 multiples of 9
Name the first six multiples of 6
6, 12, 18, 24, 30, 36
A cinema has 4 rows of seats with 9 seats in each row. How many seats are there in total?
36 seats
There are 7 days in a week. How many days are there in 5 weeks?
35 days
A square tile has a side length of 8 cm. What is its area?
64 cm2
Tom sees 9 shelves of books, with 7 books on each shelf. How many books does he see?
63 books
Lena buys 6 packs of pencils. Each pack contains 9 pencils. How many pencils does she have altogether?
54 pencils
If 4 × 5 = 20, what is 4 × 50? What is 0.4 × 5?
200 and 2
If 7 x 9 =63, then what is 0.7 x 9?
6.3
What is 202, 302, and 402 ?
400, 900, 1600
Use a mega fact to solve:
If 9 × 3 = 27, what is 900 × 3?
2700
Use a mega fact to solve this: What is 6,000 ÷ 600?
10
If a number is even, it must be a multiple of four. True or false?
False. Even numbers that are a product of an odd number and an even number are not multiples of four
True or false: all multiples of seven are odd. Prove it!
False.
True or false: All square numbers have an odd number of factors. Explain your answer.
Yes because one of their factors is multiplied by itself.
Amira says, “All multiples of 9 are odd.” Is she right? Prove it with two examples.
No because you have 9 x 2 = 18 and 9 x 4 = 36. Whenever you multiply 9 by an even number, you get an even number.
All multiples of sixes are multiples of three. True or false? Prove it!
Yes because 6 is under the 6 times table. 60/3 = 20, 18/3 = 6, 12/3 =4
I’m a multiple of 4 and 6. I’m smaller than 50. I’m not in the 7 times table. What number am I?
12, 24, 36, 48
What is the difference between the square of 9 and the square of 7?
32
Find two square numbers that add up to 100
64 and 36
Which number is both a square number and in the 9 times table?
9, 36, 81
Which number fits all three rules?
It's a multiple of 4
It's greater than 20
It’s in the 6 times table
(List three possible answers)
24, 36, 48, 60, 72, 84, 96, 108