Math With Amar · Guided practice
10,000 ways to practice.
One idea at a time.
Each chapter gives you a distinct mathematical scenario: one question to attempt, a hint, a worked solution, and an animated example you can control.
10,000 questions · 10,000 animated scenarios · 14 study levels
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Grade labels are starting points; school sequences vary. Advanced chapters assume the prerequisites listed on their pages.
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Grade 7 practice chapters
81–100 of 750 matching chapters · Page 5 of 38
Clear filtersGrade 7 · Chapter 81
Track the percent reference base · practice 9
An original amount of 50 changes by 90%. Find the signed change and the new amount. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 82
Check a two-step equation · practice 9
Solve 2x + (-4) = -10, then check by substitution. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 83
Reverse order for negative division · practice 9
Solve 3x ≤ 3, including the boundary. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 84
Compare map and model scales · practice 9
Dilate a rectangle with sides 1.5 and 4.25 by length factor 2.25. Find the new side lengths and area. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 85
Connect circumference and circle area · practice 9
A circle has radius 2.5. Find the area and arc length of its 45° sector. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 86
Account for every box face · practice 9
Find the surface area of a closed rectangular box with edge lengths 3, 5.5, and 6. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 87
Test a summary against all readings · practice 9
Find the mean, median, and range of the five values [2, 4, 10, 10, 12]. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 88
Combine rational changes · practice 10
Start at -7.5 and apply a signed change of -5. Where do you finish? Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 89
Preserve a proportional relationship · practice 10
One batch has 2 units of A and 9 units of B. Find both quantities in 8 identical batches and the fraction of the total that is A. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 90
Track the percent reference base · practice 10
An original amount of 75 changes by 30%. Find the signed change and the new amount. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 91
Check a two-step equation · practice 10
Solve 1x + (1) = 59, then check by substitution. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 92
Reverse order for negative division · practice 10
Solve -5x ≤ -23, including the boundary. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 93
Compare map and model scales · practice 10
Dilate a rectangle with sides 1 and 4 by length factor 3. Find the new side lengths and area. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 94
Connect circumference and circle area · practice 10
A circle has radius 4.5. Find the area and arc length of its 255° sector. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 95
Account for every box face · practice 10
Find the surface area of a closed rectangular box with edge lengths 2, 2, and 6.5. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 96
Test a summary against all readings · practice 10
Find the mean, median, and range of the five values [4, 6, 12, 14, 17]. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 97
Build a two-stage outcome table · practice 7
Two independent selections each have six equally likely outcomes. The first has 1 favorable outcomes and the second has 6. Find the probability both are favorable. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 98
Combine rational changes · practice 11
Start at -1 and apply a signed change of 7.5. Where do you finish? Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 99
Preserve a proportional relationship · practice 11
One batch has 12 units of A and 7 units of B. Find both quantities in 2 identical batches and the fraction of the total that is A. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 100
Track the percent reference base · practice 11
An original amount of 100 changes by -30%. Find the signed change and the new amount. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapter