Math activities week #9: Larger number subtraction (without regrouping)
We have not covered this concept in class yet. Some of you might already know how to subtract larger numbers, but for others this might be a new concept. It might be challenging at first. Remember you can use a 100’s chart to help you. You can draw pictures to help you and you can use object from around the house. Please do not use a calculator.
1. Practice your subtraction strategies with 1’s using this game: https://www.mathplayground.com/ASB_IslandChaseSubtraction.html
Having a strong understanding of your addition and subtraction strategies to 20 will help with speed and accuracy as you move on to larger numbers.
2. Watch the following video on subtraction: https://www.youtube.com/watch?v=8HIPTYXhArk
3. Complete the following worksheet using the above strategy
Mad-Minute-Double-Digit-Subtraction
4. Word Problem: You have 100 cents (or 1 dollar) to spend at the candy store. Below is the list of prices. What treats can you get with 100 cents? Use words, drawings and/or equations to answer the following question. You may buy multiples of a certain candy if you want. How much money do you have leftover? What is the largest amount of treats you can buy with 100 cents?
Optional: Try the spinner game on your own or with someone else in your family. The instructions can be found on page 2.
2digitsubtractiongamewithoutregrouping
Optional: Worksheet
Leave a Reply