Tens
Hundreds
Thousands
Estimating
All Over the Place?
100
What is 27 rounded to the nearest ten?
30
100
What 138 rounded to the nearest hundred?
100
100
What is 1,224 rounded to the nearest thousand?
1,000
100

About how much is 499 + 398?

Around 900
100

Use the correct sign to compare these numbers:

2 345   _____  3 456

What is <?

200
What is 71 rounded to the nearest ten?
70
200
What is 2,876 rounded to the nearest hundred?
2,900
200
What is 6,736 rounded to the nearest thousand?
7,000
200

About how much is 3 015 + 2 999?

About 6 000

200

Use the correct sign to compare these numbers:

4 345   _____  3 453

What is >?

300
What is 648 rounded to the nearest ten?
650
300

What is 4,212 rounded to the nearest hundred?

4,200

300

What is 1,247 rounded to the nearest thousand?

1,000

300

About how much is 244 + 426

Around 675

300

What is 23 tens, 2 thousands and 7 ones in standard form?

What is 230 + 2 000 + 7 = 2 237?

400
What is 1,887 rounded to the nearest ten?
1,890
400

What is 3,421 rounded to the nearest hundred?

3,400

400

What is 4,732 rounded to the nearest thousand?

5,000

400

About how much is 1 212 + 4 486?

About 5 700

400

How many hundreds blocks would you need to model   2 300?

What is 23?


10 hundreds = 1 000

20 hundreds = 2 000

23 hundreds = 2 300

500

What is 5,623 rounded to the nearest ten?

5,620

500

What is 4,732 rounded to the nearest hundred?

4,700

500

What is 4,217 rounded to the nearest thousand?

4,000

500

About how much is 473 + 1 219?

Around 1 700.

500

How many hundreds blocks would you need to model   5 400?

What is 54?

10 hundreds = 1 000

20 hundreds = 2 000

40 hundreds = 4 000

50 hundreds = 5 000

54 hundreds = 5 400

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