I'll solve this number patterns worksheet step by step. Let me work through each problem carefully.
Problem 1: 30, 40, 50, 60, ___, ___
- Looking at the pattern: 30 → 40 (add 10), 40 → 50 (add 10), 50 → 60 (add 10)
- Rule: Add 10 to each number
- Next two numbers: 60 + 10 = 70, then 70 + 10 = 80
Problem 2: 1, 10, 100, 1,000, ___, ___
- Looking at the pattern: 1 × 10 = 10, 10 × 10 = 100, 100 × 10 = 1,000
- Rule: Multiply by 10
- Next two numbers: 1,000 × 10 = 10,000, then 10,000 × 10 = 100,000
Problem 3: 2, 4, 8, 16, ___, ___
- Looking at the pattern: 2 × 2 = 4, 4 × 2 = 8, 8 × 2 = 16
- Rule: Multiply by 2
- Next two numbers: 16 × 2 = 32, then 32 × 2 = 64
Problem 4: 26, 260, 2,600, 26,000, ___, ___
- Looking at the pattern: 26 × 10 = 260, 260 × 10 = 2,600, 2,600 × 10 = 26,000
- Rule: Multiply by 10
- Next two numbers: 26,000 × 10 = 260,000, then 260,000 × 10 = 2,600,000
Problem 5: 22,195, 22,190, 22,185, 22,180, ___, ___
- Looking at the pattern: 22,195 - 5 = 22,190, 22,190 - 5 = 22,185, 22,185 - 5 = 22,180
- Rule: Subtract 5 from each number
- Next two numbers: 22,180 - 5 = 22,175, then 22,175 - 5 = 22,170
Problem 6: 3, 30, 300, 3,000, ___, ___
- Looking at the pattern: 3 × 10 = 30, 30 × 10 = 300, 300 × 10 = 3,000
- Rule: Multiply by 10
- Next two numbers: 3,000 × 10 = 30,000, then 30,000 × 10 = 300,000
Problem 7: 360,000, 36,000, 3,600, ___, ___
- Looking at the pattern: 360,000 ÷ 10 = 36,000, 36,000 ÷ 10 = 3,600
- Rule: Divide by 10
- Next two numbers: 3,600 ÷ 10 = 360, then 360 ÷ 10 = 36
Problem 8: 520,000, 52,000, 5,200, ___, ___
- Looking at the pattern: 520,000 ÷ 10 = 52,000, 52,000 ÷ 10 = 5,200
- Rule: Divide by 10
- Next two numbers: 5,200 ÷ 10 = 520, then 520 ÷ 10 = 52
Final Answer:
1.
30, 40, 50, 60, 70, 80 | Rule: Add 10
2.
1, 10, 100, 1,000, 10,000, 100,000 | Rule: Multiply by 10
3.
2, 4, 8, 16, 32, 64 | Rule: Multiply by 2
4.
26, 260, 2,600, 26,000, 260,000, 2,600,000 | Rule: Multiply by 10
5.
22,195, 22,190, 22,185, 22,180, 22,175, 22,170 | Rule: Subtract 5
6.
3, 30, 300, 3,000, 30,000, 300,000 | Rule: Multiply by 10
7.
360,000, 36,000, 3,600, 360, 36 | Rule: Divide by 10
8.
520,000, 52,000, 5,200, 520, 52 | Rule: Divide by 10
Parent Tip: Review the logic above to help your child master the concept of 4th grade pattern worksheet.