Cogito
Grade 2 Math · Chapter 2 · Lesson 3
Inches and Feet
Another pair of units, used the same way.
10 problems · about 11 minutes · 2.MD.A.1
Figure — use these to answer the problems
Warm-Up Review
From earlier lessons. Loosen up before the new work.
3 problemsFrom “Centimetres and Metres”
How many centimetres are in a metre?
AnswerFrom “Measuring in Centimetres”
Where should one end of the object go?
- On the 0.
- On the 1.
- On the edge of the ruler.
From “Two-Step Word Problems”
9 sweets. 5 more given. 6 eaten. How many are left?
Answer
Warm Up
Straightforward practice. Get the method working first.
3 problemsHow many inches are in a foot?
AnswerDoes measuring in inches work differently from centimetres?
- No. Start at 0 and read the far end.
- Yes. Inches are read differently.
How many inches make one foot?
Answer
Build It Up
The same ideas with more to keep track of.
1 problemAn object goes from 0 to 6 inches. How long is it?
Answer
Stretch Yourself
Mixed problems. Work out what kind of question it is before you start.
3 problemsAn object goes from 2 to 9 inches. How long is it?
AnswerA Foot Ruler
A ruler is one foot long. How many inches is that?
AnswerinchesThe Book
A book starts at 0 and its edge lands on 9. How long is the book?
Answerinches