Counting backwards from 20 practice quiz for grade 1 math

🔢 Topic Summary

Counting backwards is like taking steps down a staircase. Instead of adding 1 each time, you subtract 1. When counting backwards from 20, you start at 20 and go down to 19, then 18, and so on, until you reach 1. This helps understand number order and prepares you for subtraction!

🧮 Part A: Vocabulary

Match each word with its correct definition:

Answers:

• 🔍 Counting Backwards - C
• 💡 Subtract - B
• 📝 Sequence - D
• ➗ Previous - E
• ➕ Successor - A

✍️ Part B: Fill in the Blanks

Complete the paragraph with the correct words.

When we count __________, we start with a larger number and __________ one each time. For example, counting backwards from 20 involves saying the numbers 20, 19, 18, and so on. This is the opposite of counting __________, where we __________ one each time. Counting backwards helps us understand __________ and get ready for __________!

Word Bank: backwards, add, subtract, forwards, numbers, math

Answers:

• 🔑 backwards
• ➕ subtract
• 💡 forwards
• 📝 add
• ➗ numbers
• ➕ math

🧠 Part C: Critical Thinking

Why is it important to learn to count backwards? Give at least two reasons.

• 💡 It helps with subtraction.
• 📝 It improves understanding of number order.