Counting and Comparing Ocean Creatures

The video tutorial explores a scenario where Jacques discovers an underwater city ruled by starfish. It presents a math problem involving the number of seahorses and starfish, explaining that there are 59 seahorses, which is 28 fewer than the number of starfish. The tutorial guides viewers through solving the problem by adding 28 to the number of seahorses to find the number of starfish, which totals 87. The solution is verified to ensure accuracy, reinforcing the concept of solving word problems involving addition and subtraction.

What did Jacques discover at the bottom of the ocean?

• An underwater city

• A treasure chest

• A coral reef

• A sunken ship

Who ruled the underwater city discovered by Jacques?

• Seahorses

• Sharks

• Starfish

• Dolphins

Tags

CCSS.1.NBT.A.1

How many seahorses were there in the underwater city?

• 28

• 100

• 59

• 87

Tags

CCSS.1.OA.A.1

The number of seahorses is 28 fewer than what?

• The number of dolphins

• The number of starfish

• The number of turtles

• The number of sharks

Tags

CCSS.3.OA.D.8

If there are 59 seahorses, how many more starfish are there?

• 28 fewer

• 28 more

• 59 more

• 59 fewer

Tags

CCSS.3.OA.D.8

What is the first step in verifying the number of starfish?

• Subtract 28 from 59

• Add 28 to 59

• Divide 59 by 28

• Multiply 59 by 28

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

How many tens are in the number 59?

• 8 tens

• 2 tens

• 9 tens

• 5 tens

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the sum of 59 and 28?

• 97

• 67

• 87

• 77

Tags

CCSS.1.NBT.A.1

How many starfish are there in total?

• 28

• 87

• 59

• 115

Tags

CCSS.7.NS.A.1C

Is 59 exactly 28 fewer than 87?

• Not enough information

• Maybe

• No

• Yes

Tags

CCSS.7.NS.A.1C