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Maths · Grade 2 · Set A
Jumps on the number line
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A
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Goal: 15 min
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Remember: Jump the tens, then the ones. Count the spaces between the marks, not the marks.

Read and jump

Jump the tens, then the ones. Count the spaces, not the marks.

1
The dot is on .
2
Where is the dot? Write its number:
3
60 + 30: Pip jumps three tens. Where does Pip land?
4
85 − 36: Pip jumps back 30, then back 6. Where does Pip land?
5
These jumps start at 48. Which sum do they show?
48 + 648 + 2048 + 26
6
Pip jumps 2 to make ten, then 7 more. What is 8 + 9?
7
Pip jumps from 74 up to 93. How many did Pip jump in all?
8
11 − 8: Pip jumps back 1 to make ten, then back 7. Where does Pip land?
9
The dot is on 55.
TrueFalse
10
70 + 20 lands on 80.
TrueFalse
11
Join each sum to its jumps.
  1. 157 + 20
  2. 257 + 2
  3. 357 + 22
  • Ajump 2 tens, then 2 ones
  • Bjump 2 tens
  • Cjump 2 ones
12
Show 63 + 28 in jumps. Put the steps in order.
  • Start at 63
  • Jump 20 to 83
  • Jump 3 to 91
  • Jump 5 to 88
13
Draw jumps on the line to show 34 + 15. Start at 34.
14
Tell how you find 52 − 27 using jumps.
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Answer key · Set A
Jumps on the number line
134 The marks go up by one. From 30, count on 4 marks: 34.
217 From 15, count on 2 marks: 16, 17.
390 Three tens are 30. 60, 70, 80, 90.
449 85 take away 30 is 55. Then 55 take away 6 is 49.
548 + 26 The jumps are 20 and 6. 20 and 6 make 26, so it is 48 + 26.
617 8 and 2 make 10. 10 and 7 more make 17.
719 Add the jumps: 6 and 10 and 3 make 19.
83 11 take away 1 is 10. Then 10 take away 7 is 3.
9False The dot is one mark past 55. It is on 56.
10False 20 is two tens. Two jumps of ten land on 90.
111-B, 2-C, 3-A
121, 2, 4, 3 Start first, then take the big jump of tens, then the ones in two small jumps.
14Your own words: a grown-up reads it.
Mark each answer, count the right ones and write the score on the sheet.