Adding and subtracting two-digit numbers
Answers are for parents and teachers.
1
Break 74 in two ways.
70 + 4 and 60 + 14
2
Add: 21 + 37 and 44 + 45.
58 and 89
3
Subtract: 59 − 26 and 83 − 61.
33 and 22
4
Layla has 46 pencils and her brother has 32. How many pencils do they have in all? Estimate first.
About 70 (40 + 30). Exactly 78.
5
Write one addition story and one subtraction story with two-digit numbers, and solve them.
Answers differ. Check that the tens and ones were added or subtracted correctly.