Reading, comparing and writing decimals
Answers are for parents and teachers.
1
Write 3,060,205.08 in words.
Three million, sixty thousand, two hundred five and eight hundredths.
2
Give the value of every digit in 7.408 and write the number in expanded form.
7 ones = 7; 4 tenths = 0.4; 0 hundredths = 0; 8 thousandths = 0.008. Expanded: 7 + 0.4 + 0.008.
3
Work out 8.07 × 10, 8.07 × 100 and 8.07 ÷ 10.
80.7; 807; 0.807.
4
Order from largest to smallest: 2.5, 2.05, 2.55, 2.505.
2.55 > 2.505 > 2.5 > 2.05.
5
Salma says 0.30 is greater than 0.3 because 30 is greater than 3. Is she right?
No. A zero at the end of a decimal does not change its value: 0.30 = 0.3 (30 hundredths = 3 tenths).