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Cogito

Grade 2 Math · Chapter 2 · Lesson 7

Practice Worksheet

Length Word Problems

Stories about how long things are.

10 problems · about 13 minutes · 2.MD.B.5, 2.OA.A.1

NameDate

Figure — use these to answer the problems

Two pieces joined end to end. The bar underneath is the total length.
First piece and Second piece
Joined length
First piece (cm)24
Second piece (cm)18
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

3 problems

  1. From “How Much Longer?”

    A 16 cm rope and an 11 cm rope. How much longer is the first?

    Answer

  2. From “Estimating Length”

    About how long is one big step?

    • About 1 metre.
    • About 1 centimetre.

  3. From “The Same Object, Two Units”

    Which gives the bigger number, centimetres or metres?

    • Centimetres.
    • Metres.

Warm Up

Straightforward practice. Get the method working first.

3 problems

  1. A 23 cm and a 19 cm strip joined. How long in all?

    Answer

  2. Can you add 8 centimetres to 3 metres straight away?

    • No. The units are different.
    • Yes. 8 and 3 make 11.

  3. 28 cm and 34 cm joined. How long in all?

    Answer

Build It Up

The same ideas with more to keep track of.

1 problem

  1. A 50 cm rope loses 16 cm. How long now?

    Answer

Stretch Yourself

Mixed problems. Work out what kind of question it is before you start.

3 problems

  1. A 40 cm and a 25 cm stick. How much longer is the first?

    Answer

  2. The Ribbon Roll

    A ribbon is 35 cm long. Leo cuts off 12 cm. How long is the ribbon now?

    Answercm

  3. Two Jumps

    Ana jumped 46 cm, then 27 cm further. How far did she jump in all?

    Answercm