1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one...

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Transcript of 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one...

Page 1: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.
Page 2: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.
Page 3: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.

1

10

1000 100 1 0 1

The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right.

3

Instead of using a table,we can place a DECIMAL POINT between the

ones and tenths place and write as 5684.312

ten

ths

hu

nd

red

ths

thou

san

dth

s

5 6 8 4 1 2.

1

100

1

1000

Page 4: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.

PICTURE FRACTION DECIMAL

1

10.1

3

10

6

10

Decimal takes less

Space!

.3

.6

Page 5: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.

A DECIMAL IS ANOTHER WAY OF REPRESENTING A FRACTION

462.893 DECIMAL

PART

WHOLE NUMBER PART

DECIMAL

POINTDECIMAL POINT

SEPERATES THE WHOLE

PART AND THE FRACTION

PART!

Decimal numberhas a decimal

point!

Page 6: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.

4.6 Four point six

Four and six tenths

8.25 Eight point two five

Eight and twenty five hundredths

39.07 Thirty nine point zero seven

Thirty nine and seven hundredths

0.123 Zero point one two three

One hundred twenty three thousandths

Zero on the left of a whole

Number has no value

zero on the right of a

decimal has no value

So, 005.5000 =5.5

Page 7: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.

• 0.5 5 five tenths• 10

• 2.3 3 two and three tenths• 10

• 0.89 89 eighty nine hundredths• 100

• 0.004 4 four thousandths• 1000

• 76.1 1 seventy six and one tenth•

No. of decimal digits =No. of zeroes in the denominater!

1076

2

Page 8: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.

1

110

1100

Page 9: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.

1 4 6

How many whole squares? 1

How many more tenths? 4

How many more hundredths? 6

1’s 1

’s10

1

‘s

100

.

So, the above shaded figure represents the decimal - 1.46

WHAT DOES THE SHADED REGION REPRESENT?

Page 10: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.

Count the shaded wholes, tenths, and hundredths toform the DECIMAL

11001

110

1 3

1 6 8

2 3 7

Page 11: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.

10 Or O.3 of my fingers are hurt.

3

Two of the ten petals are coloured pink.

So, 0.2 of the petals are coloured pink!

Page 12: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.

0.4 OF THE CAKE IS LEFT!

1.8 L OF LIQUID IS IN THE JARS ALTOGETHER!

It’s so easy to say in decimals!

Page 13: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.

Count the whole and then the parts!

Box of ten

Ten masks Ten masks

1.2packets of balls!

1.5packets of pencils!

2.4packets of masks!

Page 14: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.

Three of the ten beetroot’s leaves have been cut.

Or 0.3 of the beetroot’s leaves are cut!

Decimals are always something out of ten or hundreds!

Page 15: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.

Eight out of the ten members are taking the notes.So 0.8 members are taking the notes!

Page 16: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.

Rs.30.50

Page 17: 1 10 1000 100 1 0 1 The place value of a digit decreases to one tenth as the digit moves by one place, FROM left to right. 3 I nstead of using a table,we.

After all, decimals are not that complicated!

Decimals are another way of representing fractions!

Decimals are always a part of ten, hundred, or a

thousand!

Decimals take less space!