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Transcript
```Name
Lesson 4.1
Reteach
_
Estimate Quotients Using Multiples
of 142 + 5 is between. Then
Find two numbers the quotient
estimate the quotient.
You can use multiples to estimate. A multiple of a number is the
product of a number and a counting number.
Step 1 Think: What number multiplied by 5 is about 142?
Since 142 is greater than 10 x 5, or 50, use counting numbers
10,20,30, and so on to find multiples of 5.
Step 2 Multiply 5 by multiples of 10 and make a table.
Counting Number
10
20
30
40
Multiple of 5
50
100
150
200
Step 3 Use the table to find multiples of 5 closest to 142.
20
x 5 = 100
30
x
5 = 150
+- 142 is between
100 and 150 .
142 is closest to 150 , so 142 --;-5 is about
Find two numbers the quotient
estimate the quotient.
1.
is between. Then
136 + 6
2.
between __
3.
.2!L.
and __
95 + 3
between __
124 + 9
4. 238 + 7
between __
and __
between _---'-
Reteach
and __