Grade 7 Reasoning: Arithmetic reasoning

Benjamin borrows $160 for a club trip and adds $60 for supplies. After $60 is paid back, the rest is paid in $20 weekly instalments. How many weeks does that take?

Callum wants to swim 198 laps. Callum swims 30 laps per day for the first 6 days. To finish in 9 days, how many laps per day does Callum need for the next 3 days?

9 items cost $2.00 each. Jonah pays with $21. How much change is returned?

Daniel has 5 boxes of 9 markers, finds 10 more, then gives away 9. How many markers are left?

The keyboard costs $160 plus a $80 delivery fee. Daniel pays $80 now. The rest is paid in $40 weekly instalments. How many weeks is that?

Leo bikes at 15 km/h for 3 hours, then 9 km more. How far is that in all?

Ethan plans to cycle 504 km. Ethan cycles 20 km per day for the first 7 days. To finish in 14 days, how many kilometres per day does Ethan need for the next 7 days?

Hair is 40 cm long and grows one quarter of that starting length each year. How long is it after 5 years?

Elena needs $480 for art supplies and $120 for a class fee. A grant covers $60. The rest is saved at $60 a week. How many weeks does the saving take?

9 items cost $2.00 each. Henry pays with $19. How much change is returned?