77 + 23 = 23 + 77 is an example of

The predecessor of 1 lakh is

The product of two whole numbers is always a

The successor of 99 is

The difference between the successor of a number and the number itself is

Write the predecessor and successor of the following number 243.

Find the value of the following on the number line 6 - 3.

Is there any natural number that has no predecessor?

Find the sum, using the number line 4 + 5.

Which is the smallest whole number?

Write the predecessor of the following:
(a) 96
(b) 9998.

Find 5 x 4 on the number line.

Find the whole number n.when 2n - 6 = 0?

In a school, there are four sections of class VI. Each section has 50 students. Money collected for picnic from each student is Rs 125. Find the r total amount collected.

Write the natual number and the whole number which has no predecessor.

In a city, polio drops were given to 212583 children on Sunday in March 2013 and to 216813 children in next month.
(a) Find the difference of the number of children getting polio drops in the two months.
(b) What is the value of vaccinating children for polio in India?

Mohan has Rs 10000 in his account. He spent Rs 5945 on his birthday. How much money left in his account?

Using properties of whole numbers, simplify the following:
(i) 5712 x 75 - 72 x 5712
(ii) 2103 x 68 - 32 x 2103.

Find 15 x 68, 17 x 23, 69 x 78 + 22 x 69 Using distributive property