Math With Amar · Guided practice
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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
161–180 of 750 matching chapters · Page 9 of 38
Clear filtersGrade 7 · Chapter 161
Compare map and model scales · practice 17
Dilate a rectangle with sides 3 and 4.25 by length factor 0.5. 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 162
Connect circumference and circle area · practice 17
A circle has radius 6.5. Find the area and arc length of its 225° sector. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 163
Account for every box face · practice 17
Find the surface area of a closed rectangular box with edge lengths 2.5, 5, and 7.5. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 164
Test a summary against all readings · practice 17
Find the mean, median, and range of the five values [2, 4, 8, 9, 11]. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 165
Build a two-stage outcome table · practice 12
Two independent selections each have six equally likely outcomes. The first has 6 favorable outcomes and the second has 2. 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 166
Combine rational changes · practice 18
Start at -6 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 167
Preserve a proportional relationship · practice 18
One batch has 10 units of A and 11 units of B. Find both quantities in 7 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 168
Track the percent reference base · practice 18
An original amount of 90 changes by 20%. 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 169
Check a two-step equation · practice 18
Solve 1x + (-10) = 46, 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 170
Reverse order for negative division · practice 18
Solve 5x ≤ 16, including the boundary. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 171
Compare map and model scales · practice 18
Dilate a rectangle with sides 1.5 and 2 by length factor 1.75. 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 172
Account for every box face · practice 18
Find the surface area of a closed rectangular box with edge lengths 5, 7.5, and 8. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 173
Test a summary against all readings · practice 18
Find the mean, median, and range of the five values [4, 6, 11, 13, 15]. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 174
Build a two-stage outcome table · practice 13
Two independent selections each have six equally likely outcomes. The first has 5 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 175
Combine rational changes · practice 19
Start at 0.5 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 176
Preserve a proportional relationship · practice 19
One batch has 6 units of A and 9 units of B. Find both quantities in 3 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 177
Track the percent reference base · practice 19
An original amount of 115 changes by -40%. 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 178
Check a two-step equation · practice 19
Solve 8x + (-6) = 34, 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 179
Reverse order for negative division · practice 19
Solve -7x ≤ -10, including the boundary. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 180
Compare map and model scales · practice 19
Dilate a rectangle with sides 2.5 and 4 by length factor 1.25. 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 chapter