Week 3 maths number -rounding
As Mrs Budget is half way through her shopping she has realised she has left her wallet at home. Fortunately she has $100 emergency money in her bag to get her by. She rounds the price of each item to help her keep tabs on her spending.
Will she have enough for her groceries?
How quickly can you calculate the approximate cost of her shopping? What will she need to do before she gets to the register?
Is she over or under her budget?
How close to $100 can you get with the groceries in her cart?
Do you need to put items back? Can you buy more than one of the items in the trolley to get you to $100. Show your rounding and calculations in your maths grid book.
Use your grid book to record the following problems. You will find the prices located in the Coles brochure above.
- 2kg of Royal Gala apples, two packets of Thins Originals and a packet of grapes.
- one bag of carrots, 1 dozen Hot Cross buns, and one bottle of Sanpellegrino.
- one pancake shake, one bottle of Green’s maple syrup and two jars of Nutella.
- one box of Solo, 2kg of prawns and 700g of Coles shredded tasty cheese
You have $100 to spend. You can only select an item once. List the price of every item that you select in your grid book. Estimate as you go, in order to get as close to spending $100 as possible. If your final total is less or more than $100, find the difference and record it in your book.
How much money did you save in problems 1 to 4 above?
Addition & Subtraction Revision
Complete these problems in your maths grid book. One digit per box! Check your work carefully. https://au.ixl.com/math/year-5/add-and-subtract-whole-numbers-word-problems
Play the following game:
Complete these activities in your maths grid book.
Activity 1. Rounding G5 p10
Activity 2. rounding grade 5