Activities to Teach Students to Subtract Multiples of 10 or 100
Subtraction can be a challenging concept for students to grasp, especially when working with multiples of 10 or 100. However, there are numerous activities and strategies that teachers can use to help students successfully subtract multiples of 10 or 100. In this article, we’ll explore a few of these activities.
1. Number Line
Using a number line is a great way to teach students to subtract multiples of 10 or 100. Have students start with a number, such as 230, and ask them to subtract 100. They can use the number line to help them visualize the subtraction process and see the difference between the starting number and the subtracted number. Encourage students to check their work by counting the hops on the number line.
2. Place Value Blocks
Place value blocks are a helpful tool when teaching students to subtract multiples of 10. Have students start with a number, such as 430, and then use place value blocks to subtract 30. This activity helps students see that when they subtract a multiple of 10 from a number, only the digit in the tens place changes.
3. Word Problems
Word problems are a great way to incorporate real-world scenarios into subtraction lessons. Students can work on problems such as: “Karen had 450 stickers in her collection. She gave away 70 stickers to her friend. How many stickers does Karen have left?” This type of problem reinforces the concept of subtracting multiples of 10 or 100 and helps students appreciate why they need to learn this skill.
4. Fact Families
Fact families help students see the relationship between addition and subtraction. For example, the fact family for 630 could be: 630 + 70 = 700, and 700 – 70 = 630. Students can also use fact families to quickly determine the answer to a subtraction problem. For example, if the fact family is 630, 70, and 700, and the problem is 700 – 630, students can quickly solve it by identifying the fact family and finding that the missing number is 70.
5. Games
Games are always a fun way to teach a concept, and subtraction games can be particularly helpful for teaching students to subtract multiples of 10 or 100. Some examples of games include “Subtraction War”, where students each draw a card with a number on it and they subtract their partners’ number from their own, and “Subtraction Bingo”, where the teacher calls out problems and students mark off the answers on their bingo cards.
In conclusion, these are just a few of the many activities that teachers can use to teach students to subtract multiples of 10 or 100. By incorporating a variety of strategies and activities, teachers can help students understand the concept of subtraction and build strong math skills.