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
Choose a starting point
Practice at your level.
Grade labels are starting points; school sequences vary. Advanced chapters assume the prerequisites listed on their pages.
Attempt · Explain · Animate
Grade 7 practice chapters
521–540 of 750 matching chapters · Page 27 of 38
Clear filtersGrade 7 · Chapter 521
Track the percent reference base · practice 56
An original amount of 140 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 522
Check a two-step equation · practice 56
Solve 3x + (0) = 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 523
Reverse order for negative division · practice 56
Solve 1x ≤ 18, including the boundary. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 524
Compare map and model scales · practice 56
Dilate a rectangle with sides 3.5 and 6 by length factor 2.75. 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 525
Connect circumference and circle area · practice 53
A circle has radius 5. Find the area and arc length of its 360° sector. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 526
Account for every box face · practice 56
Find the surface area of a closed rectangular box with edge lengths 2.5, 4, and 4. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 527
Test a summary against all readings · practice 56
Find the mean, median, and range of the five values [8, 10, 10, 11, 13]. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 528
Combine rational changes · practice 57
Start at 8 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 529
Preserve a proportional relationship · practice 57
One batch has 4 units of A and 7 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 530
Track the percent reference base · practice 57
An original amount of 165 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 531
Check a two-step equation · practice 57
Solve 2x + (5) = -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 532
Reverse order for negative division · practice 57
Solve -3x ≤ -8, including the boundary. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 533
Compare map and model scales · practice 57
Dilate a rectangle with sides 1 and 1.75 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 534
Connect circumference and circle area · practice 54
A circle has radius 1.5. Find the area and arc length of its 105° sector. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 535
Account for every box face · practice 57
Find the surface area of a closed rectangular box with edge lengths 4.5, 4.5, and 7.5. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 536
Test a summary against all readings · practice 57
Find the mean, median, and range of the five values [2, 4, 13, 15, 18]. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 537
Combine rational changes · practice 58
Start at -6 and apply a signed change of 5.5. 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 538
Preserve a proportional relationship · practice 58
One batch has 2 units of A and 6 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 539
Track the percent reference base · practice 58
An original amount of 190 changes by 65%. 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 540
Check a two-step equation · practice 58
Solve 1x + (10) = 59, then check by substitution. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapter