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All questions of Addition for Class 1 Exam

What is the sum of 123 and 45 on the abacus?
  • a)
    168
  • b)
    178
  • c)
    188
  • d)
    158
Correct answer is option 'A'. Can you explain this answer?

Edgy Education answered
  • Set 123 on the abacus: 1 bead in the hundreds column, 2 beads in the tens column, 3 beads in the ones column.
  • Add 45: Add 4 beads to the tens column (total 6 beads) and 5 beads to the ones column (total 8 beads).
  • The total is 168.
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If you start with 150 and add 60 on the abacus, what is the result?
  • a)
    210
  • b)
    205
  • c)
    220
  • d)
    215
Correct answer is option 'A'. Can you explain this answer?

Freak Artworks answered
  • Set 150 on the abacus: 1 bead in the hundreds column, 5 beads in the tens column.
  • Add 60: Add 6 beads to the tens column (total 11 beads, carry over 1 to the hundreds column and 1 bead in the tens column).
  • The total is 210.

If you have 305 and add 205 using the abacus, what is the sum?
  • a)
    510
  • b)
    500
  • c)
    515
  • d)
    505
Correct answer is option 'A'. Can you explain this answer?

Keystone Instructors answered
  • Set 305 on the abacus: 3 beads in the hundreds column, 0 beads in the tens column, 5 beads in the ones column.
  • Add 205: Add 2 beads to the hundreds column (total 5 beads), and 5 beads to the ones column (total 10 beads, carry over 1 to the tens column).
  • The total is 510.

If you have 400 on the abacus and add 123, what is the result?
  • a)
    523
  • b)
    543
  • c)
    520
  • d)
    524
Correct answer is option 'A'. Can you explain this answer?

Keystone Instructors answered
  • Set 400 on the abacus: 4 beads in the hundreds column.
  • Add 123: Add 1 bead to the hundreds column (total 5 beads), 2 beads to the tens column, and 3 beads to the ones column.
  • The total is 523.

What is the sum of 12 and 34 on the abacus?
  • a)
    46
  • b)
    48
  • c)
    45
  • d)
    44
Correct answer is option 'A'. Can you explain this answer?

Edgy Education answered
  • Set 12 on the abacus: 1 bead in the tens column, 2 beads in the ones column.
  • Add 34: Add 3 beads to the tens column (total 4 beads), and 4 beads to the ones column (total 6 beads).
  • The total is 46.

What is the sum of 5 and 9 using an abacus?
  • a)
    14
  • b)
    15
  • c)
    13
  • d)
    16
Correct answer is option 'A'. Can you explain this answer?

Freak Artworks answered
  • Set 5 on the abacus: 5 beads in the ones column.
  • Add 9: Add 4 beads to the ones column (total 10 beads, carry over 1 to the tens column) and 4 more beads (total 4 beads in the ones column).
  • The total is 14.

If you add 231 and 312 on the abacus, what is the result?
  • a)
    543
  • b)
    542
  • c)
    544
  • d)
    541
Correct answer is option 'A'. Can you explain this answer?

Freak Artworks answered
  • Set 231 on the abacus: 2 beads in the hundreds column, 3 beads in the tens column, 1 bead in the ones column.
  • Add 312: Add 3 beads to the hundreds column (total 5 beads), 1 bead to the tens column (total 4 beads), and 2 beads to the ones column (total 3 beads).
  • The total is 543.

If you start with 302 and add 214 using the abacus, what is the result?
  • a)
    516
  • b)
    517
  • c)
    514
  • d)
    515
Correct answer is option 'A'. Can you explain this answer?

Edgy Education answered
  • Set 302 on the abacus: 3 beads in the hundreds column, 0 beads in the tens column, 2 beads in the ones column.
  • Add 214: Add 2 beads to the hundreds column (total 5 beads), 1 bead to the tens column (total 1 bead), and 4 beads to the ones column (total 6 beads).
  • The total is 516.

What is the result of adding 78 and 22 on the abacus?
  • a)
    100
  • b)
    101
  • c)
    98
  • d)
    99
Correct answer is option 'A'. Can you explain this answer?

Keystone Instructors answered
  • Set 78 on the abacus: 7 beads in the tens column, 8 beads in the ones column.
  • Add 22: Add 2 beads to the tens column (total 9 beads), and 2 beads to the ones column (total 10 beads, carry over 1 to the tens column).
  • The total is 100.

What is the sum of 67 and 89 on the abacus?
  • a)
    156
  • b)
    157
  • c)
    146
  • d)
    154
Correct answer is option 'A'. Can you explain this answer?

Freak Artworks answered
  • Set 67 on the abacus: 6 beads in the tens column, 7 beads in the ones column.
  • Add 89: Add 8 beads to the tens column (total 14 beads, carry over 1 to the hundreds column) and 9 beads to the ones column (total 16 beads, carry over 1 to the tens column).
  • The total is 156.

Chapter doubts & questions for Addition - Abacus 2024 is part of Class 1 exam preparation. The chapters have been prepared according to the Class 1 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Class 1 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.

Chapter doubts & questions of Addition - Abacus in English & Hindi are available as part of Class 1 exam. Download more important topics, notes, lectures and mock test series for Class 1 Exam by signing up for free.

Abacus

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