Page 3 - E-Book prim 4

Delta Modern Language Schools

Primary stage
Maths Department

Prim 4 2024-2025

Unit 1 : Digit , Numeral , number - Really Big numbers

You know that:

The digits are: 0 , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9

The smallest 1-digit number = 0 The greatest 1-digit number = 9

The smallest 2-digit number = 10 The greatest 2-digit number = 99

The smallest 3-digit number = 100 The greatest 3-digit number = 999

The smallest 4-digit number = 1000 The greatest 4-digit number = 9 999

First: Million

• The smallest 7-digit number is million written as 1 000 000

• It is an even number because it is divisible by 2.

• The number just before it is the greatest 6-digit number 999 999

• Where 999 999 + 1 = 1000 000 (million)

Second: Milliard

• The smallest 10-digit number is 1000 000 000 writes as (milliard)

• It is an even number because it is divisible by 2.

• The number just before it is the greatest 9-digit number 999 999 999

• Where: 999 999 999 + 1 = 1 000 000 000 read as (milliard)

1