Ufumbuzi - Kurudisha urefu
3571.1
Maelezo kwa hatua
1. Andika tena nambari kutoka juu kwenda chini, zimepangwa kwa thamani zao za eneo
| Thamani ya mahali | alfu | mia | kumi | moja | . | kumi |
| 3 | 5 | 7 | 4 | . | 1 | |
| - | 3 | |||||
| . |
Weka sifuri katika mahali pa idadi tupu:
| Thamani ya mahali | alfu | mia | kumi | moja | . | kumi |
| 3 | 5 | 7 | 4 | . | 1 | |
| - | 3 | . | 0 | |||
| . |
2. Toa nambari kwa kutumia njia ndefu ya kutoa
Toa nambari kwenye safu ya kumi kutoka kwa namba juu:
1-0=1
| Thamani ya mahali | alfu | mia | kumi | moja | . | kumi |
| 3 | 5 | 7 | 4 | . | 1 | |
| - | 3 | . | 0 | |||
| . | 1 |
Toa nambari kwenye safu ya moja kutoka kwa namba juu:
4-3=1
| Thamani ya mahali | alfu | mia | kumi | moja | . | kumi |
| 3 | 5 | 7 | 4 | . | 1 | |
| - | 3 | . | 0 | |||
| 1 | . | 1 |
Andika 7 kwenye eneo la kumi.
| Thamani ya mahali | alfu | mia | kumi | moja | . | kumi |
| 3 | 5 | 7 | 4 | . | 1 | |
| - | 3 | . | 0 | |||
| 7 | 1 | . | 1 |
Andika 5 kwenye eneo la mia.
| Thamani ya mahali | alfu | mia | kumi | moja | . | kumi |
| 3 | 5 | 7 | 4 | . | 1 | |
| - | 3 | . | 0 | |||
| 5 | 7 | 1 | . | 1 |
Andika 3 kwenye eneo la alfu.
| Thamani ya mahali | alfu | mia | kumi | moja | . | kumi |
| 3 | 5 | 7 | 4 | . | 1 | |
| - | 3 | . | 0 | |||
| 3 | 5 | 7 | 1 | . | 1 |
Jibu ni: 3571.1
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