☰ Contents · Computing

Calculating in binary

Lessons 5–6 · 2 lessons · B. Boltayev, M. Mahkamov, A. Azamatov, S. Rahmonqulova. Informatics and Information Technologies, Grade 7. Revised and expanded third edition. “O‘zbekiston milliy ensiklopediyasi” State Scientific Publishing House, Tashkent, 2017
Answers are for parents and teachers.
1
Add 1110 + 1011 in binary.
2
Subtract 10101 – 1011 in binary.
3
Multiply 111 · 101 in binary.
4
Compute 1001,1 + 11,01.
5
Explain why 11 · 110 = 1110 is wrong and find the correct answer.