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раскрытие скобок, приведение подобных

Authored by Настя Калачева

Mathematics

6th Grade

Used 3+ times

раскрытие скобок, приведение подобных
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6 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Раскройте скобки :   -5(2x - 3y - 8)

10x + 15y + 8

-10x + 15y + 40

-10x + 8y - 13

10x - 15y + 40

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Приведите подобные слагаемые : -5a + 7a -9a - 7a

-14a

0

-18a

-4a

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Приведите подобные слагаемые: 0,8k + 17,5b - 1,2k - 0,5b

-2k - 17b

-2k + 17b

0,4k + 17b

-0,4k + 17b

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Раскройте скобки: -0,2a(b + 5x - 7)

-0,2ab - ax + 1,4

-0,2b - ax + 1,4a

-0,2ab - a + 1,4a

-0,2ab - ax + 1,4a

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Раскройте скобки: - (0,7x - 1,4y + 12)

- 0,7x - 1,4y + 12

- 0,7x + 1,4y + 12

- 0,7x +1,4y - 12

0,7x - 1,4y - 12

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Упростить: -(-x + 2y - 0,7) + (-x + 1,7 - y)

-3y + 2,4

-3y + 1

-2x - 3y + 1

2x - 3y + 1

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