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
421–440 of 750 matching chapters · Page 22 of 38
Clear filtersGrade 7 · Chapter 421
Preserve a proportional relationship · practice 45
One batch has 6 units of A and 10 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 422
Track the percent reference base · practice 45
An original amount of 50 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 423
Check a two-step equation · practice 45
Solve 6x + (-4) = 51, 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 424
Reverse order for negative division · practice 45
Solve -3x ≤ 7, including the boundary. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 425
Compare map and model scales · practice 45
Dilate a rectangle with sides 1.5 and 4.25 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 426
Connect circumference and circle area · practice 42
A circle has radius 4. Find the area and arc length of its 270° sector. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 427
Account for every box face · practice 45
Find the surface area of a closed rectangular box with edge lengths 3, 4, and 8. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 428
Test a summary against all readings · practice 45
Find the mean, median, and range of the five values [2, 4, 11, 15, 17]. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 429
Combine rational changes · practice 46
Start at 9.5 and apply a signed change of 4. 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 430
Preserve a proportional relationship · practice 46
One batch has 4 units of A and 9 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 chapterGrade 7 · Chapter 431
Track the percent reference base · practice 46
An original amount of 75 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 432
Check a two-step equation · practice 46
Solve 5x + (1) = 39, 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 433
Reverse order for negative division · practice 46
Solve 5x ≤ -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 434
Compare map and model scales · practice 46
Dilate a rectangle with sides 4.5 and 5 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 435
Connect circumference and circle area · practice 43
A circle has radius 2.5. 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 436
Account for every box face · practice 46
Find the surface area of a closed rectangular box with edge lengths 1, 4, and 6.5. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 437
Test a summary against all readings · practice 46
Find the mean, median, and range of the five values [4, 6, 17, 18, 19]. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 7 · Chapter 438
Combine rational changes · practice 47
Start at 8.5 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 439
Preserve a proportional relationship · practice 47
One batch has 2 units of A and 8 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 440
Track the percent reference base · practice 47
An original amount of 100 changes by 100%. 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