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To write the number name of a 4-digit number, we always write the thousands place first,
followed by the hundreds place, and then the tens and ones places together. Look at the

given example.
5180 is written as five thousand one hundred eighty.

Example 1: Observe the pictorial blocks and write the number they represent with the
number name.

+ + +

Solution: 1 thousand + 4 hundreds + 3 tens + 2 ones = 1000 + 400 + 30 + 2 = 1432

1432 is read as one thousand four hundred thirty-two.

Example 2: Represent 9989 on the abacus.
Solution: 9989

Th H T O Mental Maths
Write the numbers represented on
the abacus.
(a) Th H T O (b) Th H T O

Exercise 1.1

1. Observe the pictorial blocks and write the number they represent.

(a) + + + = ________

3