Math With Amar · Guided practice
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421–440 of 10,000 matching chapters · Page 22 of 500
Clear filtersGrade 1 · Chapter 421
Read three picture counts: category a count: 1; category b count: 2; category c count: 5
A survey display at a classroom activity records three category counts: 1 counter, 2 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 422
Remove a part and recount: starting objects: 16; objects taken away: 5
At a classroom activity, 16 counters are available and 5 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 423
Compare by making pairs: first group: 12; second group: 16
Two groups at a classroom activity hold 12 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 424
See ten and the extra part: counters already placed: 10; counters to bring: 7
A display at a classroom activity begins with 10 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 425
Count forward from a starting point: starting position: 9; size of each jump: 1; number of jumps: 2
A position marker at a classroom activity starts at 9 and makes 2 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 426
Align ends to compare lengths: first strip length: 13 units; second strip length: 5 units
A design for a classroom activity uses strips of lengths 13 and 5 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 427
Read three picture counts: category a count: 6; category b count: 2; category c count: 0
A survey display at a classroom activity records three category counts: 6 counters, 2 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 428
Join two small groups: objects already here: 4; objects arriving: 10
At a classroom activity, a first group contains 4 counters and another group brings 10 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 429
Remove a part and recount: starting objects: 13; objects taken away: 1
At a classroom activity, 13 counters are available and 1 is 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 430
See ten and the extra part: counters already placed: 7; counters to bring: 3
A display at a classroom activity begins with 7 counters and has 3 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 431
Count forward from a starting point: starting position: 10; size of each jump: 1; number of jumps: 5
A position marker at a classroom activity starts at 10 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 432
Align ends to compare lengths: first strip length: 20 units; second strip length: 17 units
A design for a classroom activity uses strips of lengths 20 and 17 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 433
Read three picture counts: category a count: 11; category b count: 2; category c count: 8
A survey display at a classroom activity records three category counts: 11 counters, 2 counters, and 8 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 434
Join two small groups: objects already here: 1; objects arriving: 6
At a classroom activity, a first group contains 1 counter and another group brings 6 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 435
Remove a part and recount: starting objects: 10; objects taken away: 8
At a classroom activity, 10 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 436
Compare by making pairs: first group: 9; second group: 13
Two groups at a classroom activity hold 9 counters 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 437
See ten and the extra part: counters already placed: 4; counters to bring: 10
A display at a classroom activity begins with 4 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 438
Count forward from a starting point: starting position: 0; size of each jump: 2; number of jumps: 3
A position marker at a classroom activity starts at 0 and makes 3 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 439
Align ends to compare lengths: first strip length: 7 units; second strip length: 10 units
A design for a classroom activity uses strips of lengths 7 and 10 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 440
Read three picture counts: category a count: 3; category b count: 3; category c count: 3
A survey display at a classroom activity records three category counts: 3 counters, 3 counters, and 3 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
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