Grade 6 Mental Maths worksheet featuring 40 arithmetic problems across four operations: add, subtract, multiply, and divide.

Here are the solutions for the mental math problems, broken down by category.

Add
1. 55 + 89 = 144
2. 76 + 85 = 161
3. 131 + 63 = 194
4. 247 + 83 = 330
5. 95 + 128 = 223
6. 69 + 194 = 263
7. 191 + 112 = 303
8. 617 + 68 = 685
9. 537 + 71 = 608
10. 153 + 87 = 240

Subtract
1. 482 - 91 = 391
2. 154 - 84 = 70
3. 267 - 44 = 223
4. 532 - 123 = 409
5. 98 - 44 = 54
6. 79 - 53 = 26
7. 115 - 85 = 30
8. 322 - 102 = 220
9. 582 - 160 = 422
10. 93 - 71 = 22

Multiply
1. 60 × 60 = 3,600
2. 90 × 40 = 3,600
3. 30 × 70 = 2,100
4. 50 × 50 = 2,500
5. 120 × 80 = 9,600
6. 600 × 90 = 54,000
7. 300 × 40 = 12,000
8. 50 × 900 = 45,000
9. 40 × 800 = 32,000
10. 30 × 300 = 9,000

Divide
1. 480 ÷ 60 = 8
2. 540 ÷ 90 = 6
3. 160 ÷ 40 = 4
4. 160 ÷ 40 = 4
5. 300 ÷ 10 = 30
6. 420 ÷ 7 = 60
7. 350 ÷ 5 = 70
8. 720 ÷ 12 = 60
9. 160 ÷ 8 = 20
10. 280 ÷ 7 = 40