Place Value up to 1,000,000

Million-size numbers

A million is a big number, but we meet it often. The Kenyan population is counted in millions, and national budgets are in millions and billions of shillings. The KICD Grade 5 curriculum extends numbers from 10,000 up to 1,000,000.

Place value chart

The number is 462,310. The 6 is worth 60,000.

Reading numbers

Group digits in threes from the right with commas.

• 462,310 reads: four hundred sixty-two thousand, three hundred ten.
• 1,000,000 reads: one million.

Expanded form

462,310 = 400,000 + 60,000 + 2,000 + 300 + 10

Comparing and ordering

1. Compare the number of digits.
2. If equal, compare from the left, place by place.

345,678 < 354,678 because 4 ten thousands is less than 5 ten thousands.

Rounding

• To the nearest thousand: 462,310 becomes 462,000.
• To the nearest ten thousand: 462,310 becomes 460,000.

Real use

A county with 1,234,567 residents can round to about 1.2 million people.

Try it

• Write 305,009 in words.
• Write 700,000 + 40,000 + 600 + 5 as one number.
• Order 120,400; 102,400; 124,000 from smallest to largest.