一、填空。
1. 如图所示,根据所给数字,写出相应的表示颜色的单词。
已知：733= red
(1)2583= (2)47336= (3)94483=

2. In a clock, the minute hand and the hour hand form a 60° angle. What might be the time?
______ o'clock or ______ o'clock.

3. There are two black squares in the grid. Now we can colour another square black. If you want to make the three black squares symmetrical(对称),how many ways can we colour? (write the number in the square)

4. Tom starts from place A and Jerry starts from B at the same time, walking towards each other. They meet each other at 9:00 am. Tom reaches B at 10:00 am. Jerry reaches A at 1:00 pm. Tom and Jerry both start at ______ o'clock in the morning.

5. 2018= a^2+b^2,a+b= ______.[a & b are both positive integers(整数),10＜a＜20]

二、找规律。
1.
2. Line 1: 5 4 3 2
Line 2: 6 7 8 9
Line 3: 13 12 11 10
Line 4: 14 15 16 17
Line 5: 21 20 19 18
...
Line 100:

()1. If:1×2×3+2×3×4+3×4×5= 1/4×3×4×5×6= 90
Calculate:1×2×3+2×3×4+3×4×5+…+97×98×99= ？

A.22356748
B.22524826
C.23527350
D.24736542

( )2. Which picture has the same shadow area(阴影面积) as the first picture?(多选题)

A.
B.
C.
D.