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Math Atelier
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Number · P1
Add within 20
Foundation
Core
Stretch
Question 1/8
+12 XP
Calculate
4
+
13
.
Number line
0 … 27
0
5
10
15
20
25
+
13
Start 4
Target 17
Start
Target
Jump
The arc shows the jump from 4 to 17: a step of +13. Labelled ticks stand 5 units apart.
Your answer
Hint 1/3
Check