Mẹ mua 5 quả trứng là 3.000 đồng. Mẹ mua thêm 1kg thịt với gái 7.000 đồng . Mẹ đưa cho cô bán hàng 100.000 đồng. Hỏi cô bán hàng phải trả lại cho mẹ bao nhiêu tiền?

2 câu trả lời

Đáp án: Số tiền trứng và thịt hết là :

3.000 + 7.000 = 10.000( đồng )

Cô bán hàng phải trả lại cho mẹ số tiền là :

100.000 - 10.000 = 90.000 ( đồng )

Đáp số : 90 . 000 đồng.

Đáp án:

90.000 đồng

Giải thích các bước giải:

tổng số tiền mà mẹ đã mua là :

3.000+ 7000=10.000 (đồng)

số tiền mà cô bán hàng phải trả lại cho mẹ là :

100. 000 - 10.000=90.000(đồng)

đáp số : 90.000 đồng

Câu hỏi trong lớp Xem thêm

This is John . He’s a teacher. He’s old and a little fat. He has short black hair. He works at the school. He teaches English. Every day he gets up at half past six in the morning. He takes a shower and puts on a shirt and tie. Then he eats breakfast at seven o’clock. At half past seven, he rides his motorcycle to school. Tony starts work at eight o’clock. He cleans the classroom. Then, he talks with his students’ parents. He starts teaching at nine o’clock. At twelve o’clock, he eats lunch. He teaches again in the afternoon. He goes home at half past four. In the evening, he feeds his goldfish and he watches TV. He eats dinner at half past six. Then he corrects students’ homework. At ten o’clock, he goes to bed. 1. What’s his name? …………………………………………………………………….. 2. What does he look like ? …………………………………………………………………….. 3. What time does he get up ? …………………………………………………………………….. 4. What time does he eat breakfast ? …………………………………………………………………….. 5. What time does he go home ? …………………………………………………………………….. 6. What time does he eat dinner? …………………………………………………………………….. 7. What time does he go to bed? …………………………………………………………………….. 8. What does he do in the evening ? ……………………………………………………………………..

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