I'll solve the partial product multiplication problems shown in the image. Let me work through each one step by step.
First, let me understand what partial product multiplication is: it's a method where we break down numbers into their place values (hundreds, tens, ones) and multiply each part separately before adding them together.
Let me solve each problem:
1) 617 × 5
- Break down 617: 600 + 10 + 7
- Multiply each part by 5: 600×5 = 3000, 10×5 = 50, 7×5 = 35
- Add them: 3000 + 50 + 35 = 3085
2) 529 × 8
- Break down 529: 500 + 20 + 9
- Multiply each part by 8: 500×8 = 4000, 20×8 = 160, 9×8 = 72
- Add them: 4000 + 160 + 72 = 4232
3) 825 × 6
- Break down 825: 800 + 20 + 5
- Multiply each part by 6: 800×6 = 4800, 20×6 = 120, 5×6 = 30
- Add them: 4800 + 120 + 30 = 4950
4) 137 × 3
- Break down 137: 100 + 30 + 7
- Multiply each part by 3: 100×3 = 300, 30×3 = 90, 7×3 = 21
- Add them: 300 + 90 + 21 = 411
5) 764 × 4
- Break down 764: 700 + 60 + 4
- Multiply each part by 4: 700×4 = 2800, 60×4 = 240, 4×4 = 16
- Add them: 2800 + 240 + 16 = 3056
6) 238 × 9
- Break down 238: 200 + 30 + 8
- Multiply each part by 9: 200×9 = 1800, 30×9 = 270, 8×9 = 72
- Add them: 1800 + 270 + 72 = 2142
7) 231 × 7
- Break down 231: 200 + 30 + 1
- Multiply each part by 7: 200×7 = 1400, 30×7 = 210, 1×7 = 7
- Add them: 1400 + 210 + 7 = 1617
8) 953 × 8
- Break down 953: 900 + 50 + 3
- Multiply each part by 8: 900×8 = 7200, 50×8 = 400, 3×8 = 24
- Add them: 7200 + 400 + 24 = 7624
9) 337 × 2
- Break down 337: 300 + 30 + 7
- Multiply each part by 2: 300×2 = 600, 30×2 = 60, 7×2 = 14
- Add them: 600 + 60 + 14 = 674
The solutions to all nine problems are:
1) 3085
2) 4232
3) 4950
4) 411
5) 3056
6) 2142
7) 1617
8) 7624
9) 674
Parent Tip: Review the logic above to help your child master the concept of partial products multiplication worksheet 4th grade.