1.3.1 Try some yourself
Activity 2
Write each of the following three numbers in numerals and then place them in ascending order:
eight hundred and eight thousand
two million and twenty-four
nine thousand nine hundred and ninety-eight
Answer
1 Written in numerals, the numbers are:
808 000, 2 000 024, 9 998
So, in ascending order, we have:
9 998, 808 000, 2 000 024.
Activity 3
Multiply 2490 by 100.
Answer
2490 × 100 = 249 000
Notice that the digits have moved 2 places to the left and two zeroes have been added at the right.
Activity 4
Now try to answer these questions:
(a) Place the following numbers of votes in an election in order, with the smallest first:
9 999, 5 001, 49 020
(b) Multiply 9 494 by 100.
Answer
3 Your answers should be:
(a) 5 001, 9 999, 49 020.
(b) 949 400.
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