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Grade 1 comparing and ordering numbers up to 20 math school ... - Free Printable

Grade 1 comparing and ordering numbers up to 20 math school ...

Educational worksheet: Grade 1 comparing and ordering numbers up to 20 math school .... Download and print for classroom or home learning activities.

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Show Answer Key & Explanations Step-by-step solution for: Grade 1 comparing and ordering numbers up to 20 math school ...
Certainly! Let’s solve the problem step by step.

The worksheet asks you to:

1. Order each set of numbers from the smallest to the greatest (top section).
2. Order each set of numbers from the greatest to the smallest (bottom section).

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## 🔢 SECTION 1: Smallest to Greatest

Set 1: `12, 18, 14, 9`


- Find the smallest number → 9
- Next smallest → 12
- Then → 14
- Largest → 18

Ordered: 9, 12, 14, 18

---

Set 2: `6, 16, 19, 19`


- Smallest → 6
- Next → 16
- Then → 19 (appears twice, so both go at the end)

Ordered: 6, 16, 19, 19

---

Set 3: `13, 20, 12, 4`


- Smallest → 4
- Next → 12
- Then → 13
- Largest → 20

Ordered: 4, 12, 13, 20

---

## 🔢 SECTION 2: Greatest to Smallest

Set 1: `2, 11, 17, 15`


- Largest → 17
- Next → 15
- Then → 11
- Smallest → 2

Ordered: 17, 15, 11, 2

---

Set 2: `18, 14, 15, 12`


- Largest → 18
- Next → 15
- Then → 14
- Smallest → 12

Ordered: 18, 15, 14, 12

---

Set 3: `5, 13, 17, 9`


- Largest → 17
- Next → 13
- Then → 9
- Smallest → 5

Ordered: 17, 13, 9, 5

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## Final Answers (to write in the train cars):

From Smallest to Greatest:


1. 9, 12, 14, 18
2. 6, 16, 19, 19
3. 4, 12, 13, 20

From Greatest to Smallest:


1. 17, 15, 11, 2
2. 18, 15, 14, 12
3. 17, 13, 9, 5

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📌 Tip for students: When ordering numbers, it helps to underline or circle the smallest (or largest) number first, then cross it out and repeat until all are ordered.

Let me know if you’d like a printable version or explanation for younger learners! 🚂
Parent Tip: Review the logic above to help your child master the concept of ordering numbers worksheet year 1.
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