1. Find the missing number in this pattern: 5, 11, 23, 47, □

 

Answer:

 

📖 REMINDER: Look for consistent mathematical operations between consecutive numbers. Try multiplying or adding.

 

 

WA2,NH,2024,Number Patterns

2. Arrange the following in increasing order: 23⁄4, 2.8, 25⁄8, 2.6 

 

📖 REMINDER: When comparing mixed numbers, convert them to improper fractions or decimals first.

 

 
WA2,NH,2024,Fractions

3. What is the missing number in the box?

6⁄9 =     /15

 

Answer:

 

 

📖 REMINDER: Equivalent fractions can be found by multiplying or dividing both numerator and denominator by the same number. Find what the denominator was multiplied by, then multiply the numerator by the same number.

 

 

WA2,NH,2024,Fractions

4. A water tank was filled with 60 liters of water. Water was used for gardening from 07:00 to 13:00. The line graph shows the amount of water in the tank from 07:00 to 13:00.(a) How much water was used from 08:00 to 10:00? 

Answer: (a) {{{20}}}(b) At which 1-hour period was the water not being used for gardening? 

Answer: {{{10|10:00|10 : 00|10: 00|10 :00}}} am  to  {{{11|11:00|11 : 00|11: 00|11 :00}}}am  

📖 REMINDER: On a line graph, a horizontal line means no change in quantity. Steeper lines mean faster usage, flatter lines mean slower usage.

 

 
WA2,NH,2024,Graphs

5. Sarah used 2⁄5 kg of flour to bake bread. She used 1⁄3 kg of flour less to make cookies than to bake bread. She had 1⁄2 kg of flour left.

 

(a) How much flour did she use for the cookies and bread altogether?

 

Answer: (a) kg

(b) How much flour did she have at first?

 

Answer: kg

 

📖 REMINDER: For "less than" problems, subtract to find the smaller amount. When adding fractions, find a common denominator first.

 

 

WA2,NH,2024,Fractions

6. The table below shows the number of Primary 4 students who can swim in a primary school. There are equal number of students in 4A, 4B and 4C. Which of the following shows the correct data for (a) and (b)? 
4A4B4C
Number of students who can swim2816(b)
Number of students who cannot swim8(a)14
 

📖 REMINDER: All classes have the same total students. Find the total for 4A first, then use that to check each option.

 

 
WA2,NH,2024,Problem Solving,whole numbers

 

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