7. Decimal operations

7.01 Add decimals

7.02 Subtract decimals

7.03 Add and subtract to thousandths

7.04 Story problems with addition and subtraction

7.05 Powers of 10

7.06 Multiply decimals by single digit numbers

7.07 Multiply decimals by whole numbers

7.08 Division where answers are decimals

7.09 Divide decimals by whole numbers

7.10 Story problems with multiplication or division

7.11 Value of decimal expressions

Level 6

7.04 Story problems with addition and subtraction

Interactive practice questions

A group of friends measured each other's heights and recorded the results in the table shown.

How much taller is $Sally$ than $Luke$ ?

Name	Height (m)
$Luke$	$1.49$1.49
$Yuri$	$1.6$1.6
$Sally$	$1.7$1.7
$Tricia$	$1.94$1.94

Easy

Approx a minute

A farmer measured the rainfall her property received in the months of $March$ , $April$ , and $May$ . The amounts are shown in the table.

How much rain did her property receive in total in $April$ and $May$ ?

During a small earthquake event, two large rocks fell from a cliff. A geologist measured the mass of the two rocks. One rock had a mass of $69.22$69.22 kg, and the second rock had a mass of $72.74$72.74 kg.

What was the total mass of the two rocks that fell from the cliff?

Answer the following:

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Outcomes

VCMNA214

Add and subtract decimals, with and without digital technologies, and use estimation and rounding to check the reasonableness of answers

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