Ufumbuzi - Kurudisha urefu
26.67
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 |
| 1 | 0 | 0 | ||||
| - | 7 | 3 | . | 3 | 3 | |
| . |
Weka sifuri katika mahali pa idadi tupu:
| Thamani ya mahali | mia | kumi | moja | . | kumi | mia |
| 1 | 0 | 0 | . | 0 | 0 | |
| - | 7 | 3 | . | 3 | 3 | |
| . |
2. Toa nambari kwa kutumia njia ndefu ya kutoa
Kwa sababu tarakimu ya juu (0) katika safu ya mia ni ndogo sana kupata tofauti chanya, kukopa 1 kutoka kwa idadi ya kushoto (100.0) ambayo inakuwa (099.9) na kupata (10).
| Thamani ya mahali | mia | kumi | moja | . | kumi | mia |
| 0 | 9 | 9 | 9 | 10 | ||
| 1 | 0 | 0 | . | 0 | 0 | |
| - | 7 | 3 | . | 3 | 3 | |
| . |
Toa nambari kwenye safu ya mia kutoka kwa namba juu:
10-0-3=7
| Thamani ya mahali | mia | kumi | moja | . | kumi | mia |
| 0 | 9 | 9 | 9 | 10 | ||
| 1 | 0 | 0 | . | 0 | 0 | |
| - | 7 | 3 | . | 3 | 3 | |
| . | 7 |
Toa nambari kwenye safu ya kumi kutoka kwa namba juu:
9-3=6
| Thamani ya mahali | mia | kumi | moja | . | kumi | mia |
| 0 | 9 | 9 | 9 | 10 | ||
| 1 | 0 | 0 | . | 0 | 0 | |
| - | 7 | 3 | . | 3 | 3 | |
| . | 6 | 7 |
Toa nambari kwenye safu ya moja kutoka kwa namba juu:
9-3=6
| Thamani ya mahali | mia | kumi | moja | . | kumi | mia |
| 0 | 9 | 9 | 9 | 10 | ||
| 1 | 0 | 0 | . | 0 | 0 | |
| - | 7 | 3 | . | 3 | 3 | |
| 6 | . | 6 | 7 |
Toa nambari kwenye safu ya kumi kutoka kwa namba juu:
9-7=2
| Thamani ya mahali | mia | kumi | moja | . | kumi | mia |
| 0 | 9 | 9 | 9 | 10 | ||
| 1 | 0 | 0 | . | 0 | 0 | |
| - | 7 | 3 | . | 3 | 3 | |
| 2 | 6 | . | 6 | 7 |
Andika 0 kwenye eneo la mia.
| Thamani ya mahali | mia | kumi | moja | . | kumi | mia |
| 0 | 9 | 9 | 9 | 10 | ||
| 1 | 0 | 0 | . | 0 | 0 | |
| - | 7 | 3 | . | 3 | 3 | |
| 0 | 2 | 6 | . | 6 | 7 |
Jibu ni: 26.67
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