
2B专题16“折”的问题
Authored by Asmo Teacher
Mathematics
3rd Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
请作答。
2×2x2x2=16(米)
1×1x2=2(米)
2×2x2=8(米)
2×2=4(米)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
请作答。
4段
5段
3段
2段
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
请作答
36 ÷(2x2)=9
答:每折长9米。
36 ÷2=18
答:每折长18米。
36 ÷(1x1)=36
答:每折长36米。
36 ÷(1x2)=18
答:每折长18米。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
请作答。
2x2x10=40厘米
答:这根绳子原来长40厘米。
1x1x10=10厘米
答:这根绳子原来长40厘米。
2x10=20厘米
答:这根绳子原来长20厘米。
2x1x10=20厘米
答:这根绳子原来长20厘米。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把一根16厘米的绳子,对折三次,每段长多少厘米?
16÷(2x2x2x2)= 1
16÷ 2 = 8
16÷(2x2)= 4
16÷(2x2x2)= 2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
请作答。
2x2=4
2x2x2x2=16
2x2x2=8
2x2x2x2x2=32
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
请作答。
折完2次后,应该是4小根(2x2),但是,间剪中开后,其中的1根分成了两分,2+3=5
折完3次后,应该是8小根(2x2x2),但是,中间剪开后,其中的1根分成了两分,2+7=9
折完1次后,应该是2小根,但是,间剪中开后,其中的1根分成了两分,2+1=3
折完4次后,应该是16小根(2x2x2x2),但是,间剪中开后,其中的1根分成了两分,2+15=17
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