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2024年4月15日发(作者：异步传输协议为第几层协议)
五年级数学下册知识点整理
In this article。there are some XXX:
Unit 1: Geometric ns
metric Figures: A figure that XXX。with both sides
exactly overlapping。is called an axisymmetric figure。The line is
called the axis of symmetry.
teristics of Axisymmetric Figures: distance
from the symmetric point to the axis of symmetry is equal on both
sides。 lines XXX to the axis of symmetry.
: The movement of a figure or object around a point or
axis is called XXX.
Unit 2: XXX
s and Multiples: If a x b = c。then a and b are factors
of c。and c is a multiple of a and b.
convenience。when XXX。XXX integers (generally
not including decimals).
smallest factor of a number is the largest factor is
the number itself。The number of factors of a number is finite.
of a number is the number itself。and there is no
largest multiple。The number of multiples of a number is infinite.
s with a 8 in the ones place are multiples of
2.
s with a 5 in the ones place are multiples of 5.
the sum of the digits in a number is a multiple of
the number is a multiple of 3.
numbers are multiples of odd numbers are not.
12.A number with only 1 and itself as factors is called a prime
number。A number with other factors in n to 1 and itself is called
a composite number。1 is XXX.
l numbers can be divided into prime and composite
numbers based on the number of factors。and into even and odd
numbers based on whether they are multiples of 2.
numbers under 100 are:
2.3.5.7.11.13.17.19.23.29.31.37.41.43.47.53.59.61.67.71.73.79.83.
97.
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