Snack Maths
A pizza has 8 equal slices. You eat 3. What fraction of the pizza did you eat?
3/8.
An ice block melts in the sun. What change of state occurs?
Solid to liquid (melting).
Which word is the adjective in: "The chaotic classroom finally emptied"?
Chaotic.
In a video game, what does NPC stand for?
Non player character.
What number comes next: 4, 8, 12, 16, ...?
20. Add 4 each time.
Four friends share a $28 pizza equally. How much does each person pay?
$7 each.
A football is sitting still. What type of force must act to make it start moving?
An unbalanced force. Accept a push or kick that produces a net force.
What two words form the contraction "they're"?
They are.
An app asks for a code sent to your phone as well as your password. What security feature is this?
Two factor authentication (2FA), also accept multi factor authentication.
A code shifts each letter forward one place: A becomes B. Decode DBU.
CAT. Move each coded letter back one place.
A $30 lunch deal is reduced by 20%. What is the new price?
$24. The discount is $6.
A cold drink can gets wet on the outside. Where does this water come from, and what is the process called?
Water vapour in the surrounding air cools into liquid on the can. The process is condensation.
"My backpack weighs a tonne!" Which language technique exaggerates for effect?
Hyperbole.
A game skin gives no speed, strength or damage advantage. Is it a cosmetic change or a gameplay advantage? Explain.
A cosmetic change. It changes appearance without improving performance.
Three friends finish a race with no ties. Mia finishes before Leo. Leo finishes before Zac. Who finishes second?
Leo. Order: Mia, Leo, Zac.
You have $20. A wrap costs $6.50 and a juice costs $3.20. You buy two wraps and one juice. How much change do you get?
$3.80. Total cost: $16.20.
A student tests whether warmer water dissolves sugar faster. Name TWO things they should keep the same to make it a fair test.
Any two: amount of sugar, volume of water, sugar grain size, stirring method or speed, or container type. Water temperature is the variable being changed.
A student says "Brilliant weather!" while walking home in a downpour. What do they probably mean, and what technique are they using?
They mean the weather is terrible. The technique is verbal irony or sarcasm. Accept either term with the meaning explained.
A message says you have won free game currency and asks you to enter your school password through an unfamiliar link. Give TWO warning signs AND one safe action.
Warning signs: an unexpected prize, a request for your school password, or an unfamiliar link (any two). Safe action: do not use the link or enter details; report it to a trusted adult or school IT, or verify through the official app.
A mystery number is greater than 20 and less than 40. It is a multiple of 3 and 5, and it is even. What is it? Explain how you know.
30. The only multiple of both 3 and 5 between 20 and 40 is 30, and it is even.
Deal A: 3 pizzas for $27. Deal B: pizzas cost $12 each, with 25% off the total. For 6 identical pizzas, which deal is cheaper, or are they equal? Show both totals.
They are equal: $54. Deal A: 2 × $27 = $54. Deal B: 6 × $12 × 0.75 = $54.
A pond food chain is algae → water fleas → small fish → herons. Most small fish disappear. Predict what happens FIRST to water fleas and THEN to algae. Explain both links.
Water fleas increase because fewer fish eat them. Algae then decreases because more water fleas eat it. Accept predictions with both links explained; assume other conditions stay the same.
"Although Kai had rehearsed, his hands shook as he stepped onto the stage." Identify the opening subordinate clause AND explain what the contrast suggests about Kai.
Subordinate clause: "Although Kai had rehearsed". The contrast suggests he is still nervous despite being prepared. Both parts are required.
You play 6 matches. Your mean score is 18. The first 5 scores are 12, 20, 15, 24 and 17. What was your sixth score? Show your reasoning.
20. Six matches total 6 × 18 = 108. The first five total 88, so 108 − 88 = 20.
A three digit lock code has digits that add to 14. The tens digit is twice the hundreds digit. The ones digit is 2 more than the hundreds digit. What is the code? Explain.
The code is 365. Let the hundreds digit be h. Then h + 2h + (h + 2) = 14. So 4h = 12 and h = 3. The tens digit is 6 and the ones digit is 5.