Review to find two numbers when knowing the sum or difference and the ratio of those two numbers số Lesson 1 page 176: Write the correct number in the blank Sum of two numbers 91 170 216 Ratio of two numbers … [Read more...] about Review to find two numbers when knowing the sum or difference and the ratio of those two numbers

# Grade 4 Math

## Review on finding two numbers when knowing the sum and difference of those two numbers

Review on finding two numbers when knowing the sum and difference of those two numbers Lesson 1 page 175: Write the correct number in the blank Sum of two numbers 318318 [1945[1945 32713271 Difference of two numbers 4242 eighty seveneighty … [Read more...] about Review on finding two numbers when knowing the sum and difference of those two numbers

## Review on finding the average

Review on finding the average Lesson 1 page 175: Find the average of the following numbers a) 137; 248 and 395. b) 348; 219; 560 and 725. Solution guide: To calculate the average of multiple numbers, we calculate the sum of the numbers, and then divide that sum by the number of terms. a) The average of these numbers is : (137 + 248 + 395) : 3 = … [Read more...] about Review on finding the average

## Geometry review

Geometry review 1.1. Geometry review Lesson 1 page 173: Observe the picture above, point out a) The sides are parallel to each other; b) The sides are perpendicular to each other. Solution guide: Observe the figure to find the sides are perpendicular to each other, the sides are parallel to each other. a) Side AB and side DC are parallel b) Side AB and … [Read more...] about Geometry review

## Quantitative practice

Quantitative practice 1.1. Quantitative practice Lesson 1 page 170: Write the correct number in the dot 1 nest = ... kg 1 quintal = ... oats 1 quintal = ... kg 1 ton = ... quintal 1 ton = ... kg 1 ton = ... oats Solution guide: Based on the table of units of measurement: 1 nest = 10 kg 1 quintal = 10 oats 1 quintal = 100kg 1 ton = 10 quintals 1 ton = … [Read more...] about Quantitative practice