2NIC2 REVISION

Rounding Numbers

100

265. 432 rounded to nearest hundredths

265. 43

200

11, 245, 702 to the nearest million

11, 200,000

300

201, 230.4589 rounded to the nearest Tenths

201, 230.5

400

This number was rounded to the nearest ________.

Number = 4, 449

Answer = 4,400

hundreds

500

This number was rounded to the nearest ________.

Number = 7, 812,215

Answer = 7, 812,220

Tens

Number Properties

100

I am that Number Property where you can add two numbers in the same order and the sum will remain the same. Who am I ?

Commutative Property

200

You can group three or more numbers anyway you wish the answer will not change. Who am I?

Associative Property

300

Multiply me then find the sum or add me then multiply the sum, my answer will remain the same. What property am I ?

Distributive Property

400

If you  multiply me by my multiplicative inverse, the product will be one. Which property am I?

Multiplicative Inverse Property

500

If you add me to my additive inverse your answer will be zero. Can you guess my name?

Inverse Property of Addition

24- hour and 12- hour clock

100

2:36pm

14:36

200

02:12

2:12am

300

09:24

924am

400

11:56pm

11:56

500

00:45

12:45am

Types of Numbers

100

We are also called Counting Numbers.

Natural Numbers 

200

Counting Numbers, their opposites and zero.

Integers

300

Numbers that can be written as fractions.

Rational Numbers 

400

Counting Numbers and zero.

Whole Numbers 

500

Numbers that cannot be written as fractions.

Irrational Numbers