☰ Contents · Mathematics

Subtracting a number from a sum and a sum from a number; problems

Lessons 36–40 · 5 lessons · I.V. Repyova, Y.V. Zemlina. Mathematics Grade 2, Parts 1–4. Novda Edutainment, 2023
Answers are for parents and teachers.
1
Calculate: (36 + 28) − 16, (54 + 19) − 14.
2
Calculate: 60 − (14 + 25), 85 − (25 + 33).
3
Problem: Of 40 notebooks, 12 were given to Grade 1 and 15 to Grade 2. How many are left?
4
Solve the equation: (x + 20) − 10 = 45.
5
Write an expression and calculate: subtract 12 from the sum of 30 and 25.