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 1 practice chapters
361–380 of 750 matching chapters · Page 19 of 38
Clear filtersGrade 1 · Chapter 361
See ten and the extra part: counters already placed: 10; counters to bring: 10
A display at a classroom activity begins with 10 counters and has 10 more ready to join. Find the total after the arriving counters join and the original missing part of ten, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 362
Count forward from a starting point: starting position: 10; size of each jump: 2; number of jumps: 1
A position marker at a classroom activity starts at 10 and makes 1 forward jumps of 2 units each. Find the endpoint after the stated jumps, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 363
Align ends to compare lengths: first strip length: 3 units; second strip length: 2 units
A design for a classroom activity uses strips of lengths 3 and 2 equal units. Find the longer strip and the difference between the lengths, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 364
Read three picture counts: category a count: 8; category b count: 11; category c count: 10
A survey display at a classroom activity records three category counts: 8 counters, 11 counters, and 10 counters. Find the total count and the largest and smallest category counts, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 365
Join two small groups: objects already here: 4; objects arriving: 2
At a classroom activity, a first group contains 4 counters and another group brings 2 counters. Find the total after both groups join, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 366
Remove a part and recount: starting objects: 16; objects taken away: 8
At a classroom activity, 16 counters are available and 8 are taken away. Find the number left after the removal, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 367
Compare by making pairs: first group: 1; second group: 13
Two groups at a classroom activity hold 1 counter and 13 counters. Find the larger group and the difference between the two counts, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 368
See ten and the extra part: counters already placed: 7; counters to bring: 6
A display at a classroom activity begins with 7 counters and has 6 more ready to join. Find the total after the arriving counters join and the original missing part of ten, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 369
Count forward from a starting point: starting position: 0; size of each jump: 1; number of jumps: 5
A position marker at a classroom activity starts at 0 and makes 5 forward jumps of 1 units each. Find the endpoint after the stated jumps, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 370
Align ends to compare lengths: first strip length: 10 units; second strip length: 14 units
A design for a classroom activity uses strips of lengths 10 and 14 equal units. Find the longer strip and the difference between the lengths, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 371
Read three picture counts: category a count: 0; category b count: 12; category c count: 5
A survey display at a classroom activity records three category counts: 0 counters, 12 counters, and 5 counters. Find the total count and the largest and smallest category counts, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 372
Remove a part and recount: starting objects: 13; objects taken away: 4
At a classroom activity, 13 counters are available and 4 are taken away. Find the number left after the removal, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 373
Compare by making pairs: first group: 20; second group: 17
Two groups at a classroom activity hold 20 counters and 17 counters. Find the larger group and the difference between the two counts, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 374
See ten and the extra part: counters already placed: 4; counters to bring: 2
A display at a classroom activity begins with 4 counters and has 2 more ready to join. Find the total after the arriving counters join and the original missing part of ten, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 375
Count forward from a starting point: starting position: 1; size of each jump: 1; number of jumps: 3
A position marker at a classroom activity starts at 1 and makes 3 forward jumps of 1 units each. Find the endpoint after the stated jumps, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 376
Align ends to compare lengths: first strip length: 17 units; second strip length: 6 units
A design for a classroom activity uses strips of lengths 17 and 6 equal units. Find the longer strip and the difference between the lengths, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 377
Read three picture counts: category a count: 5; category b count: 12; category c count: 0
A survey display at a classroom activity records three category counts: 5 counters, 12 counters, and 0 counters. Find the total count and the largest and smallest category counts, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 378
Join two small groups: objects already here: 9; objects arriving: 4
At a classroom activity, a first group contains 9 counters and another group brings 4 counters. Find the total after both groups join, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 379
Remove a part and recount: starting objects: 18; objects taken away: 6
At a classroom activity, 18 counters are available and 6 are taken away. Find the number left after the removal, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 380
Compare by making pairs: first group: 19; second group: 9
Two groups at a classroom activity hold 19 counters and 9 counters. Find the larger group and the difference between the two counts, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapter