Solving exercises on pages 87 and 88 of Math 3 Workbook Volume 1, Connecting Knowledge with Life textbook.

Solving third-grade Math problems on pages 87 and 88 of the textbook Connecting Knowledge with Life Volume 1.

Solutions to exercises on pages 87 and 88 of Math 3 Workbook Volume 1, Connecting Knowledge with Life textbook:

Engage

Activity

1. Solve Exercise 1 Page 87 Math Grade 3

Problem: Number?

Solution: To determine the mass of the objects on the right-side scale, calculate the total mass of the counterweights on the left-side scale.

Answer:

Observing the illustration, we see that the scales are in equilibrium, indicating equal masses on both sides.
a) The left-side counterweight is 500 g, so the sugar packet weighs 500 g.
b) The instant noodle packet weighs 100 g + 50 g = 150 g.
c) The pepper packet weighs 20 g + 20 g = 40 g.
d) The salt packet weighs 200 g + 200 g = 400 g.
Fill in the blanks as follows:

2. Solve Exercise 2 Page 88 Math Grade 3

Problem:

c) Is the bag of apples heavier than the flour packet by ...?.... g.
The total weight of the bag of apples and the flour packet is ...?... g.

Solution:
Step 1: Observe the picture to determine the weights of the bag of apples and the flour packet.
Step 2: The bag of apples weighs more than the flour packet = Weight of the bag of apples - Weight of the flour packet.
The total weight of the bag of apples and the flour packet = Weight of the bag of apples + Weight of the flour packet.

Answer:

Practice Session

1. Solve Exercise 1 Page 88 Math Grade 3

Problem: Calculate (following the example).

Solution: Perform the calculation and write the unit symbol 'grams' after the obtained result.

Answer:
a) 740 g - 360 g = 380 g
b) 15 g x 4 = 60 g

2. Solve Exercise 2 Page 88 Math Grade 3

Problem: Choose the appropriate weight for each animal.

Solution: Observe the illustration and connect each animal with the appropriate weight.

Answer:

Solving exercises on pages 87, 88 Math Grade 3 Workbook Volume 1, Connecting Knowledge with Life textbook has provided detailed guidance. Remember to compare and cross-reference with your own solutions to effectively reinforce understanding.