Back to Library

Nature's Arithmetic

Mathematics

Math problems based on biological and environmental facts.

addition subtraction biology nature

8 Questions Medium Ages 5+ Sep 5, 2026

Practice Test PDF Answer Key PDF

Choose a Study Format

Quiz

Test your knowledge with multiple-choice questions and instant feedback.

Flashcards

Flip through cards to review terms, definitions and key concepts.

True or False

Quickly decide if statements are true or false to reinforce understanding.

Match Game

Race against time to match questions with their correct answers.

Study Guide

Read through all topics and answers as a comprehensive study reference.

Listen Mode

Listen to questions and answers read aloud — great for audio learners on the go.

Embed This Study Set

Add this interactive study set to your website or blog — all 6 formats included.

<div data-quixly-id="6952"></div>
<script src="https://www.quixlylearn.com/assets/embed/widget.js"></script>

Learn more about embedding →

About this Study Set

This study set covers Mathematics through 8 practice questions. Math problems based on biological and environmental facts. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 8 questions from the Nature's Arithmetic study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 A honeybee has 6 legs and a spider has 8 legs. If you add these together, how many legs do they have in total?

A 12
B 14
C 15
D 16

2 An adult human has 32 teeth. If a human loses 8 baby teeth and they are replaced by permanent ones, how many teeth remain before the new ones grow in?

A 20
B 22
C 24
D 26

3 A blue whale's heart weighs about 180 kilograms, and a bowhead whale's heart weighs about 110 kilograms. What is the difference in kilograms between their heart weights?

A 60
B 70
C 80
D 90

4 The Great Barrier Reef consists of about 2,900 individual reefs. If 600 of these reefs were part of a specific northern sector, how many reefs are in the remaining sectors?

A 2,100
B 2,200
C 2,300
D 2,400

5 An average emperor penguin stands 120 centimeters tall, while an Adélie penguin stands 70 centimeters tall. How many centimeters taller is the emperor penguin?

A 40
B 50
C 60
D 70

6 A standard deck of cards has 52 cards. If you remove the 12 face cards, how many number cards are left in the deck?

A 38
B 40
C 42
D 44

7 The total number of planets in our solar system is 8. If you add the 1 star (the Sun) to these planets, how many major celestial bodies are in that group?

A 7
B 8
C 9
D 10

8 A cheetah has 4 legs and a kangaroo has 2 strong hind legs for hopping. If you add a cheetah's legs to a kangaroo's legs, what is the sum?

📱

Study on the go

Download Quixly and access all study formats on your phone — anywhere, anytime.