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 8 practice chapters
461–480 of 750 matching chapters · Page 24 of 38
Clear filtersGrade 8 · Chapter 461
Connect slope and a linear rule · practice 53
For the line y = 0x + (-4), find y when x = 3 and identify the slope and vertical intercept. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 462
Locate simultaneous solutions · practice 53
Solve the simultaneous equations y = -3x and y = 1.5x + (-1). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 463
Translate every coordinate equally · practice 51
Translate the point (1, 1) by the vector (6, -4). Find the image and the movement length. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 464
Follow decimal place-value scaling · practice 49
Write 5.5 × 10^(6) as an ordinary decimal number. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 465
Separate trend from causal claims · practice 51
For inputs [1, 2, 3, 4, 5] and corresponding outputs [8, 7, 11, 15, 14], find the least-squares slope, mean output, and sum of squared residuals. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 466
Accumulate circular cross-sections · practice 51
Find the volume of a cylinder with radius 4 and height 7.5. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 467
Bracket a principal square root · practice 53
Enclose √109 after 12 bisections starting from [0, 109]. Report bounds rounded outward to five decimal places and the exact interval width. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 468
Distinguish length and area multipliers · practice 53
Dilate a rectangle with sides 3 and 3.25 by length factor 2.25. 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 8 · Chapter 469
Connect slope and a linear rule · practice 54
For the line y = -0.5x + (9), find y when x = 3 and identify the slope and vertical intercept. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 470
Locate simultaneous solutions · practice 54
Solve the simultaneous equations y = 0.5x and y = -2x + (-7). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 471
Translate every coordinate equally · practice 52
Translate the point (1, 1) by the vector (-3, 3). Find the image and the movement length. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 472
Follow decimal place-value scaling · practice 50
Write 6 × 10^(1) as an ordinary decimal number. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 473
Separate trend from causal claims · practice 52
For inputs [1, 2, 3, 4, 5] and corresponding outputs [8.25, 3.5, 7.5, 11.5, 6.75], find the least-squares slope, mean output, and sum of squared residuals. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 474
Accumulate circular cross-sections · practice 52
Find the volume of a cylinder with radius 2 and height 4. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 475
Bracket a principal square root · practice 54
Enclose √85 after 8 bisections starting from [0, 85]. Report bounds rounded outward to five decimal places and the exact interval width. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 476
Distinguish length and area multipliers · practice 54
Dilate a rectangle with sides 4 and 5.25 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 8 · Chapter 477
Connect slope and a linear rule · practice 55
For the line y = -1.5x + (-7), find y when x = 3 and identify the slope and vertical intercept. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 478
Locate simultaneous solutions · practice 55
Solve the simultaneous equations y = -2x and y = 1.5x + (7). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 479
Translate every coordinate equally · practice 53
Translate the point (1, 1) by the vector (-2, -2). Find the image and the movement length. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 8 · Chapter 480
Follow decimal place-value scaling · practice 51
Write 6.5 × 10^(-4) as an ordinary decimal number. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapter