Skills · Ratios & Proportions · Ratios & Percents

Double number lines

Printable practice with an answer key the engine computes, at three levels, in as many versions as you need.

Problem types

Sample Sheet · Level 1

  1. double number line: nickels 0, 5, ?, 15; dimes 0, 4, 8, 12nickelsdimes0054?81512
    What number goes where the ? is?
  2. double number line: pens 0, 7, 14, 21; pencils 0, 3, 6, ?penspencils007314621?
    What number goes where the ? is?
  3. double number line: cars 0, 6, ?, 18; trucks 0, 5, 10, 15carstrucks0065?101815
    What number goes where the ? is?
  4. double number line: apples 0, 5, 10, ?; oranges 0, 2, 4, 6applesoranges0052104?6
    What number goes where the ? is?
  5. double number line: cups 0, 8, 16, ?; plates 0, 7, 14, 21cupsplates00871614?21
    What number goes where the ? is?
  6. double number line: forks 0, 7, ?, 21; spoons 0, 2, 4, 6forksspoons0072?4216
    What number goes where the ? is?
  7. double number line: cats 0, 9, 18, 27; dogs 0, 2, 4, ?catsdogs009218427?
    What number goes where the ? is?
  8. double number line: boys 0, 9, 18, ?; girls 0, 5, 10, 15boysgirls00951810?15
    What number goes where the ? is?

Answer key

  1. 10 nickels
  2. 9 pencils
  3. 12 cars
  4. 15 apples
  5. 24 cups
  6. 14 forks
  7. 6 dogs
  8. 27 boys

Sample Sheet · Level 3

  1. double number line: boys 0, 10, 15, ?; girls 0, 4, 6, 12boysgirls00104156?12
    What number goes where the ? is?
  2. double number line: forks 0, 14, ?, 42; spoons 0, 8, 12, 24forksspoons00148?124224
    What number goes where the ? is?
  3. double number line: cups 0, 9, ?, 27; plates 0, 4, 8, 12cupsplates0094?82712
    What number goes where the ? is?
  4. double number line: pages 0, ?, 6, 15; minutes 0, 1, 2, 5pagesminutes00?162155
    What number goes where the ? is?
  5. double number line: apples 0, 18, ?, 54; oranges 0, 14, 21, 42applesoranges001814?215442
    What number goes where the ? is?
  6. double number line: miles 0, ?, 120, 160; hours 0, 1, 3, 4mileshours00?112031604
    What number goes where the ? is?
  7. double number line: cars 0, 5, 10, ?; trucks 0, 3, 6, 9carstrucks0053106?9
    What number goes where the ? is?
  8. double number line: meters 0, ?, 27, 45; seconds 0, 1, 3, 5metersseconds00?1273455
    What number goes where the ? is?

Answer key

  1. 30 boys
  2. 21 forks
  3. 18 cups
  4. 3 pages
  5. 27 apples
  6. 40 miles
  7. 15 cars
  8. 9 meters

Make your own

Pick the count, the level and the version, and print it with work space and the key on its own page. The same skill also makes an I Do, We Do, You Do lesson, a Mosaic, a Decoder and more.

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