Math With Amar · Guided practice
10,000 ways to 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
321–340 of 750 matching chapters · Page 17 of 38
Clear filtersGrade 7 · Chapter 321
Track the percent reference base · practice 34
An original amount of 145 changes by 95%. 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 322
Check a two-step equation · practice 34
Solve 1x + (-7) = 19, 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 323
Reverse order for negative division · practice 34
Solve 5x ≤ -4, including the boundary. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 324
Compare map and model scales · practice 34
Dilate a rectangle with sides 2.5 and 3.25 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 325
Connect circumference and circle area · practice 31
A circle has radius 3.5. Find the area and arc length of its 345° sector. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 326
Account for every box face · practice 34
Find the surface area of a closed rectangular box with edge lengths 2, 6, and 7.5. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 327
Test a summary against all readings · practice 34
Find the mean, median, and range of the five values [4, 6, 9, 11, 11]. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 328
Combine rational changes · practice 35
Start at 2.5 and apply a signed change of -3. 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 329
Preserve a proportional relationship · practice 35
One batch has 6 units of A and 12 units of B. Find both quantities in 5 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 330
Track the percent reference base · practice 35
An original amount of 170 changes by 35%. 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 331
Check a two-step equation · practice 35
Solve 8x + (-3) = 7, 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 332
Reverse order for negative division · practice 35
Solve 7x ≤ 19, including the boundary. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 333
Compare map and model scales · practice 35
Dilate a rectangle with sides 3.5 and 5.25 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 chapterGrade 7 · Chapter 334
Connect circumference and circle area · practice 32
A circle has radius 7.5. Find the area and arc length of its 75° sector. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 335
Account for every box face · practice 35
Find the surface area of a closed rectangular box with edge lengths 3.5, 4.5, and 6.5. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 336
Test a summary against all readings · practice 35
Find the mean, median, and range of the five values [6, 8, 11, 13, 18]. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 337
Build a two-stage outcome table · practice 25
Two independent selections each have six equally likely outcomes. The first has 6 favorable outcomes and the second has 5. 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 338
Combine rational changes · practice 36
Start at 9 and apply a signed change of 9.5. 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 339
Preserve a proportional relationship · practice 36
One batch has 4 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 340
Track the percent reference base · practice 36
An original amount of 195 changes by -25%. 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