Question

LESSON 1 SESSION 1

Answer 1

Answer:

• Between which two tens does it fall? Between 25 and 26 tens

• Between which two hundreds does it fall? Between 2 and 3 hundreds

Explanation:

The place-value chart is:

Hundreds         Tens      Ones

       2                   5             3

a)  Between which two tens does it fall?

Using the place values you can write 253 = 25 × 10 + 3, i.e. 25 tens and 3 ones.

From that you can write:

• 250 < 253 < 260

• 250 = 25 × 10 = 25 tens

• 260 = 26 × 10 = 26 tens

Then, you conclude that 253 is between 25 and 26 tens.

b) Between which two hundreds does it fall?

Using the same reasoning:

• 253 = 2 × 100 + 5 × 10 + 3 = 253

• 200 < 253 < 300

• 200 = 2 hundreds

• 300 = 3 hundreds

Conclusion: 253 is between 2 hundreds and 3 hundreds.