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
61–80 of 750 matching chapters · Page 4 of 38
Clear filtersGrade 7 · Chapter 61
Track the percent reference base · practice 7
An original amount of 185 changes by 50%. 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 62
Check a two-step equation · practice 7
Solve 4x + (11) = 13, 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 63
Reverse order for negative division · practice 7
Solve -7x ≤ 5, including the boundary. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 64
Compare map and model scales · practice 7
Dilate a rectangle with sides 2 and 4.5 by length factor 1.5. 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 65
Connect circumference and circle area · practice 7
A circle has radius 4. Find the area and arc length of its 90° sector. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 66
Account for every box face · practice 7
Find the surface area of a closed rectangular box with edge lengths 7.5, 8, and 8. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 67
Test a summary against all readings · practice 7
Find the mean, median, and range of the five values [6, 8, 15, 15, 17]. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 68
Build a two-stage outcome table · practice 5
Two independent selections each have six equally likely outcomes. The first has 4 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 69
Combine rational changes · practice 8
Start at -5.5 and apply a signed change of 1. 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 70
Preserve a proportional relationship · practice 8
One batch has 6 units of A and 11 units of B. Find both quantities in 4 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 71
Track the percent reference base · practice 8
An original amount of 25 changes by -5%. 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 72
Check a two-step equation · practice 8
Solve 3x + (-9) = 2, 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 73
Reverse order for negative division · practice 8
Solve 1x ≤ -20, including the boundary. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 74
Compare map and model scales · practice 8
Dilate a rectangle with sides 5 and 5.25 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 75
Connect circumference and circle area · practice 8
A circle has radius 6. Find the area and arc length of its 300° sector. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 76
Account for every box face · practice 8
Find the surface area of a closed rectangular box with edge lengths 1.5, 7, and 7. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 77
Test a summary against all readings · practice 8
Find the mean, median, and range of the five values [2, 8, 10, 18, 20]. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 78
Build a two-stage outcome table · practice 6
Two independent selections each have six equally likely outcomes. The first has 3 favorable outcomes and the second has 4. 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 79
Combine rational changes · practice 9
Start at -6.5 and apply a signed change of -2. 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 80
Preserve a proportional relationship · practice 9
One batch has 4 units of A and 10 units of B. Find both quantities in 6 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 chapter