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Practice time 5c

1. Convert the following fractions into decimals.

4 37 9 48 98
( a) ( b) ( c) ( d) ( e)
10 10 100 100 100

196 213 4 5 7
( f) ( g) ( h) 1 ( i) 23 ( j) 8
100 100 10 10 100
2. Convert the following decimals into fractions.

( a) 0.6 (b) 0.35 (c) 1.2 (d) 5.1 (e) 3.9

( f) 3.45 (g) 9.03 (h) 27.2 (i) 26.63 (j) 28.04

Mind Map Creative Thinking
math
Parts of a Decimal Number
3.5

Whole number part Decimal point Decimal part

INTRODuCTION TO DECImAlS

Tenths and Hundredths Representation of Decimal Numbers Conversion of Fractions and Decimals
on a Place Value Chart
Tenths Converting decimal fractions into
1 decimals:
or 0.1 Tens Ones Tenths Hundredths 8
10 Example: = 0.8
(10) (1) • 1 1 10
10 100 Converting decimals into decimal
fractions:
(a) 4 • 1 2 175
Example: 1.75 =
(b) 1 0 • 0 7 100

Read as: zero point one
Hundredths Place Value and Expanded Form
1
100 Ones • Tenths Hundredths
or 0.01
3 • 5 7
Place Value
7 hundredths 7 × 0.01 = 0.07
5 tenths 5 × 0.1 = 0.5
3 ones 3 × 1 = 3
Read as: zero point zero one Expanded form: 3.57 = 3 ones + 5 tenths + 7 hundredths
= 3 + 0.5 + 0.07

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