Sarin participates in school anniversary event part 3(math question)

Standard

Read posting Sarin participates in school anniversary event part 1 for school anniversary.

Lower primary school mathematics question LPQ6

At the school anniversary event, Sarin received from his teacher a box of blue, black and red pens to collect guest’s autographs. He found 121 blue pens and 214 more black pens than blue pens in the box. If there were 1 820 pens in the box, how many red pens were there?

Solution:

Model

Number of black pens = 121 + 214 = 335 pieces

Number of red pens = 1 820 -335 – 121 = 1 364 pieces

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s