True or false

The smallest 5 -digit number is the successor of the largest 4 - digit number

• false

• true

The product of the successor and predecessor of 99 is

• 9900

• 9800

• 1099

• 9700

Write the successor of 209999

10 degree Celcius below 0 degree Celcius

All prime numbers between 20 and 40

• 23, 29, 31,37

• 23, 27, 31, 35

• 27, 28, 30, 35

• 23. 25, 31, 37

Between any two whole numbers, there is a whole number

• True

• False

Predecessor of -5

Predecessor of natural number 1

• 0

• 2

• -1

• None of these

Arrange in descending order

20 , -1 ,-56 , 7 ,-20, 21, -99

The smallest integer is zero

• True

• False