Singapore Math Office Hours for Teachers
Word Problem Wednesday – Printer and Laptops
Our new problem is from the soon-to-be-published Dimensions Math 5A textbook. The word problem is from Chapter 1 after lessons on mental math.
You’ll want to draw a bar model, but then see if you can complete the computations mentally!
A library bought a printer and 5 laptops that cost $6,000 altogether. Each laptop cost $420 more than each printer. How much does the printer cost?
Our previous Word Problem Wednesday problem came from an article in the Daily Express, a UK newspaper: This is the maths puzzle that is baffling everyone.
Here’s one solution:
One parent who homeschools had her 7-year-old son take on the challenge. Enjoy the two-part video. I think the best part is in Pt. 2 when the son says to his mom: “Processing, please do not interrupt.”