Let’s solve each problem one by one. These bar models show parts and wholes — if you have the whole, subtract a part to find the missing part. If you have two parts, add them to find the whole.
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Problem 1:
Whole = 836, one part = 222 → Missing part = 836 - 222
836 - 222 =
614
Problem 2:
Whole = 580, one part = 120 → Missing part = 580 - 120
580 - 120 =
460
Problem 3:
Two parts: 116 and 241 → Whole = 116 + 241
116 + 241 =
357
Problem 4:
Whole = 972, one part = 661 → Missing part = 972 - 661
972 - 661 =
311
Problem 5:
Whole = 198, one part = 74 → Missing part = 198 - 74
198 - 74 =
124
Problem 6:
Two parts: 167 and 126 → Whole = 167 + 126
167 + 126 =
293
Problem 7:
Two parts: 213 and 406 → Whole = 213 + 406
213 + 406 =
619
Problem 8:
Whole = 435, one part = 301 → Missing part = 435 - 301
435 - 301 =
134
Problem 9:
Whole = 284, one part = 121 → Missing part = 284 - 121
284 - 121 =
163
Problem 10:
Whole = 693, one part = 103 → Missing part = 693 - 103
693 - 103 =
590
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Final Answer:
1. 614
2. 460
3. 357
4. 311
5. 124
6. 293
7. 619
8. 134
9. 163
10. 590
Parent Tip: Review the logic above to help your child master the concept of bar model math worksheet.
