Haven't signed into your Scholastic account before?
Create an accountTeachers, not yet a subscriber?
Subscribers receive access to the website and print magazine.
You are being redirecting to Scholastic's authentication page...
Haven't signed into your Scholastic account before?
Create an accountTeachers, not yet a subscriber?
Subscribers receive access to the website and print magazine.
You are being redirecting to Scholastic's authentication page...
Haven't signed into your Scholastic account before?
Create an accountTeachers, not yet a subscriber?
Subscribers receive access to the website and print magazine.
You are being redirecting to Scholastic's authentication page...
Haven't signed into your Scholastic account before?
Create an accountTeachers, not yet a subscriber?
Subscribers receive access to the website and print magazine.
You are being redirecting to Scholastic's authentication page...
Announcements & Tutorials
NEW! SuperSTEM Coming Fall 2023
For more support materials, visit our Help Center.
Subscriber Only Resources
Access this article and hundreds more like it with a subscription to DynaMath magazine.
Puzzle Zone
Flex your math muscles with these fun brainteasers!
Shutterstock.com
Shark Bite!
This shark bites everything it sees! Find the rule the shark uses to crunch
objects in its path.
100 75
32 7
118 93
55 30
74 49
Shutterstock.com
Crazy Crayons
Emma, Mia, and Sophia shared their crayons for a school project. Altogether, they used 70 crayons. But when it was time to go home, they had forgotten how many crayons each person brought!
“I brought 4 packs with 5 crayons in each pack,” Emma remembered.
“My packs had twice the number of crayons that Emma’s packs had,” Sophia recalled. “And I brought half as many packs as Emma did.”
“I had three times the number of packs Sophia brought,” Mia said. “But I don’t remember how many crayons were in each pack!”
How many crayons were in each of Mia’s packs?
Shutterstock.com
Making Lemonade
Alex and Isabella made lemonade. First, Alex squeezed ___ lemons to make ___ cups of lemon juice. Isabella added ___ cups of sugar. Alex mixed it with ___ cups of water. “Wait!” Isabella cried. “Let’s add ___ cups of strawberry juice.” They cooled the lemonade in the fridge for ___ hours. Then they each drank
___ glasses. “That was ___ times more delicious than any lemonade I’ve ever tasted!”
said Alex.
How many total cups of ingredients did Alex and Isabella use in their lemonade?
Shutterstock.com
Sandcastle Challenge
The sandcastles below were all entered into a competition. The winner’s design used 1 triangle and 3 squares. Which sandcastle won?
ANSWERS: CRAZY CRAYONS: Mia’s packs each had 5 crayons; SHARK BITE!: The rule is subtract 25; MAKING LEMONADE: All answers with correct calculations that total to a whole number are valid; SANDCASTLE CHALLENGE: Sandcastle #2 was the winner.