Math With Amar · Guided practice
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161–180 of 10,000 matching chapters · Page 9 of 500
Clear filtersGrade 1 · Chapter 161
Count a collection once: objects in the collection: 1
At a classroom activity, 1 counter is 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 162
Join two small groups: objects already here: 3; objects arriving: 5
At a classroom activity, a first group contains 3 counters and another group brings 5 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 163
Remove a part and recount: starting objects: 18; objects taken away: 4
At a classroom activity, 18 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 164
Compare by making pairs: first group: 10; second group: 2
Two groups at a classroom activity hold 10 counters and 2 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 165
See ten and the extra part: counters already placed: 6; counters to bring: 9
A display at a classroom activity begins with 6 counters and has 9 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 166
Count forward from a starting point: starting position: 5; size of each jump: 2; number of jumps: 4
A position marker at a classroom activity starts at 5 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 167
Align ends to compare lengths: first strip length: 14 units; second strip length: 8 units
A design for a classroom activity uses strips of lengths 14 and 8 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 168
Read three picture counts: category a count: 3; category b count: 1; category c count: 2
A survey display at a classroom activity records three category counts: 3 counters, 1 counter, and 2 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 169
Join two small groups: objects already here: 0; objects arriving: 1
At a classroom activity, a first group contains 0 counters and another group brings 1 counter. 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 170
Remove a part and recount: starting objects: 12; objects taken away: 7
At a classroom activity, 12 counters are available and 7 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 171
Compare by making pairs: first group: 9; second group: 15
Two groups at a classroom activity hold 9 counters and 15 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 172
See ten and the extra part: counters already placed: 3; counters to bring: 5
A display at a classroom activity begins with 3 counters and has 5 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 173
Count forward from a starting point: starting position: 6; size of each jump: 2; number of jumps: 2
A position marker at a classroom activity starts at 6 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 174
Align ends to compare lengths: first strip length: 1 units; second strip length: 1 units
A design for a classroom activity uses strips of lengths 1 and 1 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 175
Read three picture counts: category a count: 8; category b count: 1; category c count: 10
A survey display at a classroom activity records three category counts: 8 counters, 1 counter, 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 176
Join two small groups: objects already here: 8; objects arriving: 7
At a classroom activity, a first group contains 8 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 177
Remove a part and recount: starting objects: 20; objects taken away: 2
At a classroom activity, 20 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 178
Compare by making pairs: first group: 8; second group: 7
Two groups at a classroom activity hold 8 counters and 7 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 179
See ten and the extra part: counters already placed: 0; counters to bring: 1
A display at a classroom activity begins with 0 counters and has 1 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 180
Count forward from a starting point: starting position: 7; size of each jump: 2; number of jumps: 5
A position marker at a classroom activity starts at 7 and makes 5 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
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