Math With Amar · Guided practice
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1–20 of 10,000 matching chapters · Page 1 of 500
Clear filtersGrade 1 · Chapter 1
Join two small groups: objects already here: 0; objects arriving: 7
At a classroom activity, a first group contains 0 counters and another group brings 7 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 2
Remove a part and recount: starting objects: 12; objects taken away: 2
At a classroom activity, 12 counters are available and 2 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 3
Compare by making pairs: first group: 11; second group: 11
Two groups at a classroom activity hold 11 counters and 11 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 4
Count forward from a starting point: starting position: 8; size of each jump: 2; number of jumps: 1
A position marker at a classroom activity starts at 8 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 5
Align ends to compare lengths: first strip length: 1 units; second strip length: 14 units
A design for a classroom activity uses strips of lengths 1 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 6
Share fairly between two or four: objects to share: 17; number of recipients: 2
At a classroom activity, 17 counters must be shared among 2 recipients. Find the equal whole-object share and the remainder, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 7
Read three picture counts: category a count: 12; category b count: 6; category c count: 5
A survey display at a classroom activity records three category counts: 12 counters, 6 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 8
Remove a part and recount: starting objects: 20; objects taken away: 8
At a classroom activity, 20 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 9
Compare by making pairs: first group: 10; second group: 3
Two groups at a classroom activity hold 10 counters and 3 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 10
See ten and the extra part: counters already placed: 0; counters to bring: 7
A display at a classroom activity begins with 0 counters and has 7 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 11
A bundle of ten and loose ones: ten-bundles: 0; loose ones: 1
At a classroom activity, counters are represented by 0 ten-bundle and 1 loose ones. Find the total represented by the tens and ones, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 12
Count forward from a starting point: starting position: 9; size of each jump: 2; number of jumps: 4
A position marker at a classroom activity starts at 9 and makes 4 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 13
Align ends to compare lengths: first strip length: 8 units; second strip length: 6 units
A design for a classroom activity uses strips of lengths 8 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 14
Read three picture counts: category a count: 4; category b count: 7; category c count: 0
A survey display at a classroom activity records three category counts: 4 counters, 7 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 15
Count a collection once: objects in the collection: 19
At a classroom activity, 19 counters are arranged with up to 3 in each display row. Find the original count, explain the calculation, and check a related question.
Question · Worked solution · Animated example
Open practice chapterGrade 1 · Chapter 16
Join two small groups: objects already here: 5; objects arriving: 9
At a classroom activity, a first group contains 5 counters and another group brings 9 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 17
Remove a part and recount: starting objects: 17; objects taken away: 4
At a classroom activity, 17 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 18
Compare by making pairs: first group: 9; second group: 16
Two groups at a classroom activity hold 9 counters and 16 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 19
Count forward from a starting point: starting position: 10; size of each jump: 2; number of jumps: 2
A position marker at a classroom activity starts at 10 and makes 2 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 20
Align ends to compare lengths: first strip length: 15 units; second strip length: 18 units
A design for a classroom activity uses strips of lengths 15 and 18 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
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