44
Hundreds. Counting in hundreds
Textbook: Part 2, lesson 42, pp. 4–5
GoalThe hundred: 100 = 1 hundred = 10 tens. Calculating with hundreds.
New words
hundred (a group of 100) · yuzlikone hundred (100) · yuzthousand (1 000) · mingten (a group of 10) · o‘nlik
Explanation
We call 100 a hundred: 100 = 1 hundred = 10 tens. Round hundreds have their own names: 200 – ikki yuz (two hundred) ... 900 – to‘qqiz yuz (nine hundred). 10 hundreds make a thousand (1 000). We add and subtract hundreds like ordinary numbers: 3 hundreds + 2 hundreds = 5 hundreds.
Worked examples
4 hundreds + 3 hundreds = 7 hundreds, so 400 + 300 = 700.
9 hundreds − 4 hundreds = 5 hundreds, so 900 − 400 = 500. In 5 hundreds there are 50 tens.
Class activity
“Hundreds shop”: each child gets paper “coins” worth 100 sum. The teacher says “I need bread for 600 sum” and children count out 6 hundred-coins. Then swap roles.
Practice
1
600 + 300 − 200 = ?
700
2
5 hundreds + 8 hundreds − 7 hundreds = ? (write as a number)
600
3
How many hundreds are in 1 000?
10
4
The first building has 300 flats and the second has 200. How many flats in total?
500