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Chapter I
Adding and subtracting natural numbers
1
Natural numbers and simple geometric figures
Lessons 1–2
2
Scales, the number ray and comparing natural numbers
Lessons 3–4
3
Rounding and adding natural numbers
Lessons 5–6
4
Subtracting natural numbers, numerical and letter expressions
Lessons 7–8
5
Equations and Chapter I review
Lessons 9–10
Chapter II
Multiplying and dividing natural numbers
6
Multiplying and dividing natural numbers
Lessons 11–12
7
Division with remainder and the distributive law
Lessons 13–14
8
Simplifying expressions and review
Lessons 15–16
9
Harder problems and the order of operations
Lessons 17–18
10
Powers and working with data
Lessons 19–20
11
Project work and Chapter II review
Lessons 21–22
Chapter III
Solving word problems
12
Word problems and problems about parts
Lessons 23–24
13
Geometry and motion problems
Lessons 25–26
14
Two-body motion and economics problems
Lessons 27–28
15
Work problems and Chapter III review
Lessons 29–30
Chapter IV
Geometric figures
16
Angles, parallel and perpendicular lines
Lessons 31–32
17
Broken lines and the perimeter of a polygon
Lessons 33–34
18
Geometry review and the area of a rectangle
Lessons 35–36
19
Area of composite figures and units of area
Lessons 37–38
20
Estimating area and Chapter IV review
Lessons 39–40
Chapter V
Common fractions
21
Shares and common fractions
Lessons 41–42
22
Proper and improper fractions; adding and subtracting
Lessons 43–44
23
Division and fractions; review
Lessons 45–46
24
Mixed numbers
Lessons 47–48
25
Fraction problems; Chapter V review
Lessons 49–50
Chapter VI
Solid geometric figures
26
Solid shapes: polyhedra, parallelepiped, cube
Lessons 51–52
27
Nets and volume; Chapter VI review
Lessons 53–55
Chapter VII
Decimal fractions
28
Decimal fractions
Lessons 56–57
29
Adding and subtracting decimals; rounding
Lessons 58–59
30
Saving; decimals review
Lessons 60–61
31
Multiplying and dividing decimals by natural numbers
Lessons 62–63
32
Multiplying and dividing decimals
Lessons 64–65
33
Percents; Chapter VII review
Lessons 66–67
Chapter VIII
Data analysis
34
Data analysis; final review
Lessons 68–70
☰ Contents · Mathematics
Grade 5
›
Mathematics
›
Week 14
Two-body motion and economics problems
Lessons 27–28 · 2 lessons · B.Q. Khaydarov. Mathematics Grade 5, Parts 1–2. Revised and expanded third edition. Tashkent, 2020
Lesson 27
Lesson 28
Quiz
8
Homework
5
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