Multiplying and dividing natural numbers

Lessons 11–12 · 2 lessons · B.Q. Khaydarov. Mathematics Grade 5, Parts 1–2. Revised and expanded third edition. Tashkent, 2020

Answers are for parents and teachers.

Compute 67 + 67 + 67 + 67 + 67 + 67 using multiplication.

Compute conveniently: 8 × 53 × 125.

Compute 4 608 : 36 and check by multiplication.

Solve 23y = 1 311.

One box holds 24 pencils. How many pencils are in 17 boxes?