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Solving Grade 3 Math on pages 89 and 90 of the Workbook from the Knowledge Connection series, Volume 1
Solving exercises on pages 89 and 90 of Math 3 Workbook Volume 1, from the Knowledge Connection series:
Milliliter
Activity
1. Solve Exercise 1 Page 89 Math Grade 3 Workbook
Problem: How many?
Pour all the water from the jug into 3 cups (as shown).
a) Cup A has 500 ml of water, cup B has ..... ml of water, cup C has ..... ml of water.
b) Initially, the amount of water in the jug is ...... ml.
Solution Guide:
a) Observe the picture to determine the amount of water in each cup A, B, C.
b) The initial amount of water in the jug equals the total amount of water in cups A, B, C.
Answer:
a) Observing the picture, we see:
Cup A has 500 ml of water, cup B has 200 ml of water, cup C has 300 ml of water.
b) The amount of water in the jug initially equals the total amount of water in cups A, B, C
Initially, the amount of water in the jug is 1,000 ml.
2. Solve Exercise 2 Page 90 Math Grade 3 Workbook
Problem: How many?
There is 1 liter of water in the jug. Pour water from the jug into 3 cups (as shown in the picture).
a) 1 liter = ........ milliliters
b) After pouring, the remaining water in the jug is ........ milliliters.
Solution Guide:
a) Apply the conversion: 1 liter = 1000 milliliters.
b) The remaining water in the jug = Initial water amount - water amount in the cups
Answer:
a) 1 liter = 1000 milliliters.
b) After pouring, the remaining water in the jug is 1000 - 200 - 200 - 100 = 500 (milliliters).
Practice
1. Solve Exercise 1 Page 90 Math Grade 3 Workbook
Problem: Calculate (according to the template).
Solution Guide: Perform the calculations and then write the unit symbol milliliters after the result obtained.
Answer:
a) 120 ml - 20 ml = 100 ml
b) 12 ml x 3 = 36 ml
- Further reading: Math 3 Workbook Volume 1, from the Knowledge Connection series, pages 91, 92
2. Solve Exercise 2 Page 90 Math Grade 3 Workbook
Problem: A bottle of cooking oil contains 750 liters of oil. After mom used some for cooking, there are 350 milliliters of oil left in the bottle. How many milliliters of oil did mom use for cooking?
Solution Guide: The number of milliliters of oil used for cooking = Initial milliliters of oil in the bottle - Milliliters of oil left.
Answer: The amount of oil used for cooking is:
750 - 350 = 400 (ml)
Final answer: 400 ml
Solving exercises on pages 89, 90 of Math 3 Workbook Volume 1, from the Knowledge Connection series, provides students with very detailed solutions. Students can refer to them to effectively reinforce their knowledge and complete their assignments most accurately.
