: Required determining who had a higher value of coins. By neutralizing the equal number of coins both held, it was found that the difference was $12 .
You can solve this using the "Model Method" or Algebra. 2017 psle math questions and answers
: Jess needs 200 pieces of ribbon, each 110 cm long. The ribbon is sold in rolls of 25 m (2,500 cm) each. What is the minimum number of rolls she needs? Common Mistake : Calculating the total length needed ( cm) and dividing by 2,500 cm ( : Required determining who had a higher value of coins
Jess needs 200 pieces of ribbon, each 110 cm long. The shop sells ribbons in tapes of 25 m per roll. How many rolls does Jess need to buy? Common Mistakes: Direct Division: Many students multiplied : Jess needs 200 pieces of ribbon, each 110 cm long
Jess needed 200 ribbons, each 110 cm long, to decorate a room. The shop sold ribbon rolls in lengths of 25 m. Students were asked for the minimum number of rolls Jess needed to buy .
Students often struggled to visualize the "hidden" faces or the bottom faces that were not visible in the diagram.
Based in China, TROJAN pays attention to the international market, and has sold metallographic equipment to more than 50 countries, such as Europe, America, Japan and South Korea, Southeast Asia countries and regions
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