Adding and subtracting two-digit numbers; review
Answers are for parents and teachers.
1
Calculate: 27 + 33, 58 + 12, 45 + 25.
60, 70, 70
2
Calculate: 60 − 24, 90 − 37, 50 − 18.
36, 53, 32
3
Calculate: 38 + 5, 46 + 7, 29 + 6.
43, 53, 35
4
Problem: A shop had 50 pencils. 12 were sold, then 15 more. How many pencils are left?
23
5
Solve the equation: 24 + z + 10 = 60.
26