题目内容
【题目】填上“>”、“<”或“=”。
(1)11.04-7.3-3.7________3.15-2.46-0.64
(2)0.66+3.96+9.34________14.89-2.65-0.13
【答案】< >
【解析】
小数大小比较,先比较整数部分,整数部分相同,再比较十分位,十分位相同的再比较百分位,依次比下去。
(1)11.04-7.3-3.7=0.04,3.15-2.46-0.64=0.05,所以11.04-7.3-3.7<3.15-2.46-0.64;
(2)0.66+3.96+9.34=13.96,14.89-2.65-0.13=12.11,13.96>12.11,所以0.66+3.96+9.34>14.89-2.65-0.13。
故答案为:<;>。
【题目】填表。
+ | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
6 | (______) | (______) | (______) | (______) | (______) | (______) | (______) | (______) |
7 | (______) | (______) | (______) | (______) | (______) | (______) | (______) | (______) |
8 | (______) | (______) | (______) | (______) | (______) | (______) | (______) | (______) |
9 | (______) | (______) | (______) | (______) | (______) | (______) | (______) | (______) |
- | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
12 | (______) | (______) | (______) | (______) | (______) | (______) | (______) | (______) |
13 | (______) | (______) | (______) | (______) | (______) | (______) | (______) | (______) |
14 | (______) | (______) | (______) | (______) | (______) | (______) | (______) | (______) |
15 | (______) | (______) | (______) | (______) | (______) | (______) | (______) | (______) |