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二年級 - 加減的估算

Authored by Ting Van

Mathematics

2nd Grade

Used 57+ times

二年級 - 加減的估算
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪一個數最接近52+19的答案?

60

70

80

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪一個數最接近28+49的答案?

60

70

80

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪一個數最接近68-49的答案?

10

20

30

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪一個數最接近61-32的答案?

30

40

50

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪一個數最接近19?把它圈起來。

20

30

40

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪一個數最接近109?把它圈起來。

120

110

100

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

小恩有32元,媽媽又給他49元,小恩現在大約有幾十元?

70

80

90

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