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Place Value to 120: math test solutions, Grade 1 – download the PDF

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Test solutions Grade 1 : Place Value to 120 — Zyro the alien explorer of Planète Maths

Test solutions with the detailed point scale. Add up your points and spot what to review.

Suggested time: 45 minutes. Out of 20 points. Calculator allowed only when the problem says so.

1 Tens and ones / 3 pts

  1. \(50 + 3 = 53\) (1 pt)
  2. \(80 + 0 = 80\) (1 pt)
  3. \(20 + 9 = 29\) (1 pt)

2 Counting / 4 pts

  1. The next four numbers are 115, 116, 117, 118. (2 pts)
  2. Add one ten each time: 40, 50, 60, 70, 80, 90. (2 pts)

3 Compare / 3 pts

  1. 3 tens is less than 6 tens, so \(36 \lt 63\). (1 pt)
  2. The numbers are the same, so \(72 = 72\). (1 pt)
  3. 8 tens is more than 1 ten, so \(81 \gt 18\). (1 pt)

4 Ten more and ten less / 4 pts

  1. \(27 + 10 = 37\) (1 pt)
  2. \(62 - 10 = 52\) (1 pt)
  3. \(105 + 10 = 115\) (1 pt)
  4. \(110 - 10 = 100\) (1 pt)

5 Stickers on sheets / 3 pts

  1. 53 is 5 tens and 3 ones, so she fills 5 sheets. (1 pt)
  2. 3 stickers are left over. (1 pt)
  3. \(53 + 7 = 60\), so she can fill 6 sheets. (1 pt)

6 Read the number line / 3 pts

  1. P shows 103. (1 pt)
  2. Q shows 116. (1 pt)
  3. Q is farther to the right, and \(116 \gt 103\), so Q is greater. (1 pt)
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