Ballpark Estimates
Measurement
Conversions
Addition and Subtraction
Area and Perimeter
100

233+146=

What is 380?

100

Use this to measure the length of a sticky note.

What is a ruler?

100

1 meter is ________ inches. 

What is 39.37 inches?

100

(4+9)- 3=

What is 10?

100

The perimeter of a square with 4 inch sides.

What is 16 inches?

200

543+98=

What is 640?

200

People are measured in these.

What is a foot and inches?

200

1 yard is ________ feet.

What is 3?

200

345

+16

What is 361?

200

The area of a square with 4 inch side.

What is 16 inches squared.

300

38+78+29=

What is 150?

300

Our road trip would be measured using this.

What are Kilometers or miles?

300

1 kilometer is _________ meters.

What is 1000?

300

578-90=

What is 488?

300

The area of a rectangle that has the measurements 4 inches by 9 inches.

What is 36 inches squared?

400

1236+ 132=

What is 1370?

400

These are the two closest in measurement (one from the customary unit and one from the metric unit)

What is yard and meter?

400

There are _____ yards in a mile.

What is 1760?

400

(3+5)-(6)=

What is 2?

400

A square house has a perimeter of 40 meters. The house has an area of__________.

What is 100 meters squared?

500

If Abdulla and Thani both scored a 79 on their quiz, and Bader scored a 83, what is their estimated total? 

What is 240?

500

If Miriam is 5 foot 2 inches, and Mohammed is 4 foot 1 inches, how many more feet and inches is Miriam? 

What is 1 foot, 1 inch?

500

If Khalid went on a road trip with Ahmed and they traveled 5 kilometers to Dubai, then they traveled 10 kilometers to Al Ain, how far did they travel to get to their destination? 

What is 15 kilometers?

500

If Ms. Nicole has 13 boys and 17 girls in 3J, and Ms. Marcia has 19 boys and 11 girls in 3K, who has the most students?

What is they have the same amount of students?

500

A rectangle house has an area of 300 meters squared. One possible perimeter is  ________.

What is 30x10, 30+30+10+10= 80 meters. 

50x6, 50+50+6+6=112 meters. (or 60x5)

150x2, 150+150+2+2= 304 meters.

3x100