Try real-style practice for Singapore Secondary 1 G3 students. No sign-up needed: pick an answer, see instantly if you are right, then open the worked solution or model answer.
Topics: integers, fractions, percentages, algebra, ratio and linear equations. Tap an answer to check it.
1Evaluate −5 + 8 − (−3).
Show worked solution
−5 + 8 = 3. Subtracting a negative number is the same as adding: 3 − (−3) = 3 + 3 = 6.
2Find 2/3 + 3/4.
Show worked solution
Use a common denominator of 12: 2/3 = 8/12 and 3/4 = 9/12. So 8/12 + 9/12 = 17/12 = 1 5/12.
3A bag costs $80. It is sold at a 15% discount. How much do you pay?
Show worked solution
15% of $80 = $12, so you pay $80 − $12 = $68. (Or: 85% × $80 = $68.)
4Simplify 3(x + 4) − 2x.
Show worked solution
Expand the bracket: 3x + 12. Then collect like terms: 3x − 2x + 12 = x + 12.
5$240 is shared between Amy and Ben in the ratio 3 : 5. How much does Ben receive?
Show worked solution
3 + 5 = 8 parts, so 1 part = $240 ÷ 8 = $30. Ben has 5 parts: 5 × $30 = $150.
6Solve 2x − 7 = 9.
Show worked solution
Add 7 to both sides: 2x = 16. Divide both sides by 2: x = 8.
Sec 1 English reading comprehension: free passage
Read the passage, answer the questions in your head or on paper, then open the model answer to compare.
The Rain Garden
When the rainy season began, the students of Lakeview Secondary noticed something odd: the open field behind the canteen turned into a muddy pond every afternoon. Instead of complaining, a group from the Green Club proposed a rain garden, a shallow dip planted with water-loving plants that soaks up the runoff.
It took three weekends of digging. At first, some teachers doubted that it would make any difference. However, after the next heavy storm, the field was dry within an hour, and dragonflies were hovering above the new plants.
“We only moved some soil,” said Wei Ling, the club president, “but it changed how the whole school sees the field.”
1What problem did the field have during the rainy season? (1 mark)
Show explanation
Paragraph 1 says the field “turned into a muddy pond every afternoon”. The answer is B.
2Why do you think some teachers doubted that the rain garden would make a difference? (2 marks)
Show how to answer and model answer
How to answer: Inference questions need an idea plus a link to the text. Ask: what did the teachers see that made them doubtful?
Model answer: The teachers probably thought that a small dip dug by students could not solve a big flooding problem. The flooding happened every afternoon, so it seemed too serious to be fixed with just a few weekends of digging.
Marks: 1 mark for the idea (small effort vs big problem); 1 mark for linking it to the text (the daily flooding / the digging).
3What does the writer suggest by Wei Ling’s words, “We only moved some soil”? (2 marks)
Show how to answer and model answer
How to answer: Read the word “only”. It makes the work sound small. Then see what she says after “but”.
Model answer: It suggests that Wei Ling is modest. She describes their work as small, but it actually made a big difference because it changed how the whole school sees the field.
Marks: 1 mark for “modest / makes the work sound small”; 1 mark for the big result (changed how the school sees the field).
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