Mada za sehemu hiiUse the concept of numbers to communicate in various contextsMada 4
- Recognise the value of a digit in a multi-digit whole number
- Read and write multi-digit whole numbers
- Compare whole numbers using symbols =, <, and >
- Identify sequences in whole numbers
Comparing whole numbers means finding out if two numbers are equal, or if one is larger or smaller than the other. We use three special symbols to show this: equals (=), greater than (>), and less than (<).
- Equals (=) means both numbers are the same
- Greater than (>) means the first number is larger
- Less than (<) means the first number is smaller
The opening of the symbol always faces the larger number. Think of the symbol as a hungry mouth that opens toward the bigger number.
- Look at the number of digits first. The number with more digits is greater.
- If both numbers have the same number of digits, compare from the left (the highest place value).
- The first digit that is different tells you which number is greater.
Example 1: Compare 8900 and 8090
Both have four digits. Compare the thousands place: 8 = 8 (equal). Compare the hundreds place: 9 > 0. Therefore:
Example 2: Compare 3220 and 3220
All digits are the same, so the numbers are equal:
Example 3: Compare 3240 and 3420
Both have four digits. Thousands: 3 = 3. Hundreds: 2 < 4. Therefore:
Example 4: Compare 715 and 517
Both have three digits. Compare the hundreds: 7 > 5. Therefore:
| Symbol | Meaning | Example |
|---|---|---|
| = | Equal to | 45 = 45 |
| > | Greater than | 68 > 59 |
| < | Less than | 23 < 32 |
- The > symbol looks like an arrow pointing to the smaller number, or a mouth open toward the bigger number
- Read 5 > 3 as "five is greater than three"
- Read 3 < 5 as "three is less than five"
When comparing numbers, always check:
- How many digits does each number have?
- If digits are the same, compare from left to right
- Place the correct symbol between the numbers
In Tanzanian daily life, you compare numbers when shopping at the market. For example, if a bag of maize flour costs TSh 12,000 and a different brand costs TSh 10,500, you can write to know which one costs more. Comparing prices helps you decide which item to buy with your money.
Swali
Which symbol correctly compares 7823 and 7832?
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