Cogito
Grade 2 Math · Chapter 1 · Lesson 8
Two-Step Word Problems
Some problems need two answers before the real one.
10 problems · about 14 minutes · 2.OA.A.1
Figure — use these to answer the problems
Warm-Up Review
From earlier lessons. Loosen up before the new work.
3 problemsFrom “Choosing a Strategy”
9 + 7 = ?
AnswerFrom “Find the Missing Number”
? + 8 = 15
AnswerFrom “Addition and Subtraction Together”
You know 8 + 5 = 13. What is 13 − 5?
Answer
Warm Up
Straightforward practice. Get the method working first.
3 problems9 sweets. 5 more given. 6 eaten. How many are left?
AnswerIn a two-step problem, what is the first answer you find?
- A middle answer you still need to use.
- The final answer.
7 apples. 6 more arrive. 4 are eaten. How many now?
Answer
Build It Up
The same ideas with more to keep track of.
1 problem15 birds. 7 fly away. 2 come back. How many now?
Answer
Stretch Yourself
Mixed problems. Work out what kind of question it is before you start.
3 problems5 red and 6 blue pens. 3 are lost. How many are left?
AnswerThe Bakery
A tray held 8 buns. 6 more were baked. Then 5 were sold. How many buns are left?
AnswerbunsThe Library
Leo borrowed 9 books and returned 4. Then he borrowed 3 more. How many does he have?
Answerbooks