Natural Numbers
A whole, positive number starting from 1.
What is a natural number?
What is an integer?
A whole positive or negative number.
Today it is 3 degrees. Tomorrow will be 2 degrees warmer. What degrees will it be tomorrow?
5 degrees
Round 16.7 to the nearest whole number.
17
What is the HCF of 6 and 8?
2
What is 25 x 3?
75
What is 8 - 10?
-2
Today it is 5 degrees. Tomorrow, it will be 4 degrees warmer and the day after that it will be 2 degrees even warmer again. What temperature will it be on the 3rd day?
11 degrees
Round 25 to the nearest 10.
30
What is the LCM of 6 and 15?
30
What is the first natural number?
1
What is (-4) x (-3)?
12
The lift starts on the 1st floor. It goes up 7 floors before going down 3 floors. What floor will I be at then?
5th
Round 325 to the nearest 100.
300
What is the LCM of 3, 8 and 12?
24
What is 23 ?
8
Is 0 positive or negative?
It's neither.
Round 1489 to the nearest 1000.
1000
What is the HCF of 36 and 108?
36
What is the square root of 169?
13
What is (-2) x (3) x (-4) x (2)?
48
Round 16,789 to the nearest 10,000.
20,000
What is the first prime number?
2