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Educational Mental Maths worksheet with exercises on writing numbers, algebra, rounding, multiples of 9, and times tables.

Mental Maths worksheet for children featuring sections on writing numbers, algebra, rounding, shading multiples of 9, and times tables, with a cartoon scientist character.

Mental Maths worksheet for children featuring sections on writing numbers, algebra, rounding, shading multiples of 9, and times tables, with a cartoon scientist character.

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Show Answer Key & Explanations Step-by-step solution for: Grade 4 Mental Maths Worksheets | Free Printables | Math Worksheets
Final Answer:
Writing numbers:
- Three thousand, two hundred & sixty → 3260
- Nine thousand & forty eight → 9048
- Six thousand, one hundred & nineteen → 6119
- Eight hundred & seventy nine → 879
- Five thousand, two hundred & eleven → 5211
- Five hundred & seventy four → 574

Algebra:
1. 70 + 80 = 150
2. 9 × 6 = 54
3. 12 × 6 = 72
4. 120 − 70 = 50
5. 9 × 9 = 81
6. 27 + 24 = 51

Rounding – nearest 100:
1. 244 → 200
2. 675 → 700
3. 450 → 500
4. 822 → 800
5. 774 → 800
6. 155 → 200
7. 250 → 300
8. 350 → 400
9. 166 → 200
10. 931 → 900
11. 816 → 800
12. 750 → 800

Shade multiples of 9:
18, 90, 54, 81, 45, 63, 72, 99, 9, 108

Times Tables:
1. 12 × 6 = 72
2. 7 × 8 = 56
3. 9 × 6 = 54
4. 8 × 5 = 40
5. 12 × 3 = 36
6. 7 × 6 = 42
7. 12 × 4 = 48
8. 9 × 11 = 99
9. 4 × 9 = 36
10. 7 × 7 = 49
Parent Tip: Review the logic above to help your child master the concept of mental math practice worksheet.
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