Ufumbuzi - Kurudisha urefu
131.441
Maelezo kwa hatua
1. Andika tena nambari kutoka juu kwenda chini, zimepangwa kwa thamani zao za eneo
| Thamani ya mahali | mia | kumi | moja | . | kumi | mia | alfu |
| 3 | 4 | 7 | . | 8 | |||
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| . |
Weka sifuri katika mahali pa idadi tupu:
| Thamani ya mahali | mia | kumi | moja | . | kumi | mia | alfu |
| 3 | 4 | 7 | . | 8 | 0 | 0 | |
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| . |
2. Toa nambari kwa kutumia njia ndefu ya kutoa
Kwa sababu tarakimu ya juu (0) katika safu ya alfu ni ndogo sana kupata tofauti chanya, kukopa 1 kutoka kwa idadi ya kushoto (80) ambayo inakuwa (79) na kupata (10).
| Thamani ya mahali | mia | kumi | moja | . | kumi | mia | alfu |
| 7 | 9 | 10 | |||||
| 3 | 4 | 7 | . | 8 | 0 | 0 | |
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| . |
Toa nambari kwenye safu ya alfu kutoka kwa namba juu:
10-0-9=1
| Thamani ya mahali | mia | kumi | moja | . | kumi | mia | alfu |
| 7 | 9 | 10 | |||||
| 3 | 4 | 7 | . | 8 | 0 | 0 | |
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| . | 1 |
Toa nambari kwenye safu ya mia kutoka kwa namba juu:
9-5=4
| Thamani ya mahali | mia | kumi | moja | . | kumi | mia | alfu |
| 7 | 9 | 10 | |||||
| 3 | 4 | 7 | . | 8 | 0 | 0 | |
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| . | 4 | 1 |
Toa nambari kwenye safu ya kumi kutoka kwa namba juu:
7-3=4
| Thamani ya mahali | mia | kumi | moja | . | kumi | mia | alfu |
| 7 | 9 | 10 | |||||
| 3 | 4 | 7 | . | 8 | 0 | 0 | |
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| . | 4 | 4 | 1 |
Toa nambari kwenye safu ya moja kutoka kwa namba juu:
7-6=1
| Thamani ya mahali | mia | kumi | moja | . | kumi | mia | alfu |
| 7 | 9 | 10 | |||||
| 3 | 4 | 7 | . | 8 | 0 | 0 | |
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| 1 | . | 4 | 4 | 1 |
Toa nambari kwenye safu ya kumi kutoka kwa namba juu:
4-1=3
| Thamani ya mahali | mia | kumi | moja | . | kumi | mia | alfu |
| 7 | 9 | 10 | |||||
| 3 | 4 | 7 | . | 8 | 0 | 0 | |
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| 3 | 1 | . | 4 | 4 | 1 |
Toa nambari kwenye safu ya mia kutoka kwa namba juu:
3-2=1
| Thamani ya mahali | mia | kumi | moja | . | kumi | mia | alfu |
| 7 | 9 | 10 | |||||
| 3 | 4 | 7 | . | 8 | 0 | 0 | |
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| 1 | 3 | 1 | . | 4 | 4 | 1 |
Jibu ni: 131.441
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