Page 102 - Start Up Mathematics_5

(c) The fraction corresponding to 2.065 is:
265 265 2065 2065
(i) (ii) (iii) (iv)
100 1000 100 1000

SCRATCH YOUR BRAIN

1. The place values of the given numbers are jumbled up. Unjumble them and write the
correct decimal number.
(a) Place value of 4 is 4 hundreds, place value of 5 is 5 ones, place value of 3 is 3
tenths, place value of 7 is 7 tens and place value of 0 is 0 hundredths.
(b) Place value of 4 is 4 ones, place value of 3 is 3 tenths, place value of 7 is 7 tens
and place value of 3 is 3 hundredths.

2. Fill in the missing digits using 1, 2, 3, 4 or 5 to complete the series in descending order.

3__.729; 34.__61; 34.18__; 3__.191; 33.1__6

GROUP ACTIVITY

To understand the expanded form of decimal numbers
Things We Need: Coloured sheets of paper, cardboard or old greeting cards, a pair of scissors
and a glue stick

How To Do:
1. Make one set of number cards from 0 to 9 and one set of place value cards from ones
to thousandths.

0 1 2 3 4 5 6 7 8 9

ones tens hundreds thousands tenths

hundredths thousandths

2. Divide the class into groups.

3. The teacher will write a decimal number for each group one by one.
4. Each group will then place the cards to show the expanded form of that number.

5. Give points to each group for every correct answer. The group with the highest score
will be the winner.

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