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Let's explore Solving 4th-grade math problems on pages 69, 70, 71, 72 of book 1 of KNTT, Practical Application and Experience Using Some Units of Measurement in detail below to hone our problem-solving skills and find the most accurate solution methods.
Check out more good learning materials for Grade 4 Math:
- Solving Grade 4 Math Problems with Knowledge Connection
- Solving 4th-grade math problems on pages 35, 36 of book 1 of Cánh Diều - Exercise 14. Swallows, weights, tons
- Solving 4th-grade math problems on pages 80, 81 of book 1 of CTST - Exercise 36: Swallows, weights, tons
Solving 4th-grade math problems on pages 69, 70, 71, 72 of book 1 of Knowledge Connection
Exercise 20: Practical Application and Experience Using Some Units of Measurement
Solving Grade 4 Math Workbook 1 of Knowledge Connection: Activities on pages 69, 70
Solving Exercise 1 on page 69 Grade 4 Math Workbook 1 of Knowledge Connection
Problem: Below are the ingredients used in the exhibition session
a) Select the correct answer
The weight of fine sand is:
A. 5 tons
B. 5 piculs
C. 5 swallows
D. 2 swallows
b) Is the total weight of activated charcoal, stones, and large-grain sand enough for 1 picul?
Solution:
Solving Exercise 2 on page 69 Grade 4 Math Workbook 1 of Knowledge Connection
Problem: Under each water filter bottle, a square sheet with a side length of 3 dm is placed.
The area of each sheet is:
Solution:
Solving Exercise 3 on page 69 Grade 4 Math Workbook 1 of Knowledge Connection
Problem: The time to filter 500 ml of water for each water filter bottle is:
Bottle A: 250 seconds
Bottle B: 4 minutes
Bottle C: 3 minutes 50 seconds
Ask among those three bottles, which one needs the least time to filter 500 ml of water?
Solution:
Solving Exercise 4 on page 70 Grade 4 Math Workbook 1 of Knowledge Connection
Problem: At home, try making a water filter bottle similar to the one in Exercise 2. Remember to drill holes in the bottle cap before pouring fine sand, coarse sand, activated charcoal, and stones in order. For every 3 spoons of fine sand, pour 3 spoons of coarse sand, 1 spoon of activated charcoal, and 1 spoon of stones. If you don't have activated charcoal, you can just use fine sand, coarse sand, and stones. After completion, try filtering 100 ml of water to see how many seconds it takes!
Solution:
Students do it themselves.
Solving Grade 4 Math Workbook 1 of Knowledge Connection: Activities on pages 70, 71
Solving Exercise 1 on page 70 Grade 4 Math Workbook 1 of Knowledge Connection
Problem: Choose the correct answer?
a) I need a piece of wood to make our class camp signboard. I should choose a piece of wood with an area of about:
b) Our class has chosen one of three locations to set up a camp with the dimensions shown below. Which location should I choose to have the largest area?
Solution:
Solving Exercise 2 on page 71 Grade 4 Math Workbook 1 of Knowledge Connection
Problem: Choose the correct answer.
I bought 3 sets of ribbons at the prices shown below to decorate our class camp.
Which bill should I use to just have enough to pay the seller?
Solution:
Solving Exercise 3 on page 71 Grade 4 Math Workbook 1 of Knowledge Connection
Problem: Group activity.
+ One student plays the role of the seller, while the others play the role of buyers.
+ Students use cardboard, paper with printed coin faces to make purchases.
+ Each buyer, in turn, selects from one to three different items available in the store. The buyer gives the seller the amount of money equal to or more than the total amount for the selected items. If the amount of money the buyer gives is more than the total amount due, the seller must give back the change (if necessary).
+ The items available in the store are as shown in the following image.
Solution:
Students do it themselves.
Solving Grade 4 Math Workbook 1 of Knowledge Connection: Activities on page 72
Solving Exercise 1 on page 72 Grade 4 Math Workbook 1 of Knowledge Connection
Problem: Ticket prices for playing some games are as follows:
Which game do you like the most? If your whole family plays that game together, how much money will you pay in total?
Solution:
Solving Exercise 2 on page 72 Grade 4 Math Workbook 1 of Knowledge Connection
Problem: Arriving at the zoo, there are some animals with weights as follows:
Which animal do you like the most? How many kilograms does that animal weigh?
Solution:
Solving Exercise 3 on page 72 Grade 4 Math Workbook 1 of Knowledge Connection
Problem: Choose the correct answer. Arriving at the flower garden, you see a rose garden with the dimensions as shown in the picture. The area of that rose garden is:
Solution:
Solving Exercise 4 on page 72 Grade 4 Math Workbook 1 of Knowledge Connection
Problem: In the park, there is an ancient tree planted in 1864. In which century does that year belong?
Solution:
The year 1864 belongs to the 19th century.
Here is the solution to Grade 4 Math KNTT page 69, 70, 71, 72 Workbook 1: Practice and Experience using some units of measurement. You can also refer to Solving Grade 4 Math Workbook 1 of Knowledge Connection page 73, 74, 75 - Exercise 21: Concentration practice or review the exercise Solving Grade 4 Math Workbook 1 of Knowledge Connection page 67, 68 - Exercise 19: Seconds, centuries to reinforce knowledge.
