Math Quiz: 10 simple addition, subtraction, multiplication and division problems that are difficult for many people
VTC News•29/05/2023Many people think that for addition, subtraction, multiplication, and division, it is easy to find the answer in a flash. ]]>
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![[Photo] Ha Giang: Many key projects under construction during the holiday season](https://vphoto.vietnam.vn/thumb/1200x675/vietnam/resource/IMAGE/2025/5/1/8b8d87a9bd9b4d279bf5c1f71c030dec)
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Fireworks filled the sky to celebrate 50 years of national reunification
50 years of national reunification: The checkered scarf - the immortal symbol of the Southern people
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Ho Chi Minh City is bustling with preparations for the "national reunification day"
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![[Photo] Fireworks light up the sky of Ho Chi Minh City 50 years after Liberation Day](https://vphoto.vietnam.vn/thumb/1200x675/vietnam/resource/IMAGE/2025/4/30/8efd6e5cb4e147b4897305b65eb00c6f)
![[Photo] Feast your eyes on images of parades and marching groups seen from above](https://vphoto.vietnam.vn/thumb/1200x675/vietnam/resource/IMAGE/2025/4/30/3525302266124e69819126aa93c41092)
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