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Decimal Detective
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Name:Date:
Decimal Detective
Solve each clue using decimals. Show your working where you can. Prices are in New Zealand dollars (NZ$).
Decode the stall labels
Mere is checking labels at a farmers’ market. Use place value to crack the first clues.
1.A jar of mānuka honey is labelled NZ$12.438. What is the value of the digit 3?
2.Place the digits of 4.706 in the correct columns. Then write the number in words.
Ones
Tenths
Hundredths
Thousandths
3.Manaia’s mystery number is between 0.6 and 0.7. It has a 4 in the hundredths place and a 2 in the thousandths place. What is the number?
4.Talia finds a pumpkin weighing 2.7 kg. Mark 2.7 on the number line, then explain which two tenths it lies between.
Compare, calculate and solve
Use place value and careful decimal alignment to help with the market orders.
5.Which price is greatest: NZ$3.08, NZ$3.8, or NZ$3.18? Choose one and explain how you know.
- NZ$3.08
- NZ$3.8
- NZ$3.18
6.Arrange these prices from least to greatest: NZ$2.45, NZ$2.405, NZ$2.5.
7.Mere buys apples for NZ$4.75 and a loaf of bread for NZ$5.60. How much does she spend altogether?
8.Manaia pays NZ$20 for vegetables costing NZ$13.85. How much change should Manaia receive?
9.A bag of kūmara weighs 3.768 kg. Round its weight to the nearest hundredth of a kilogram.
10.A shopper says, “0.46 is greater than 0.5 because 46 is greater than 5.” Is the shopper correct? Explain using equivalent decimal notation.
2 printable pages
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