Answer:
–21.87 ÷ 4.79
≈ -20 ÷ 5
≈ -4
Step-by-step explanation:
front end estimation means to round off to the most left digit.
eg 12 ≈ 10
The answer you are looking for is associative property of addition.
In associative property, no matter where the parenthesis are, a + (b + c) is going to be equal to (a + b) + c. Since the parenthesis follow the equation a + (b + c) = (a + b) + c, you can assume you are using the associative property. Lastly, add "of addition" to associative property, since you are using addition, not multiplication.
I hope this helps!
Answer:
Step-by-step explanation:
For the second column
1. 4*5+8=28
2. 4*5.5+8=30
3. 4*6+8=28
4. 4*6.5+8=34
5. 4*7+8= 36
6. 4*7.5+8=38
For the third column
1. 7*5-11=24
2. 7*5.5-11=27.5
3. 7*6-11=31
4. 7*6.5-11=34.5
5. 7*7-11=38
6. 7*7.5-11=41.5
32 times bc emma skydived 16 times and it says sue sky dived 2 ×
Nico so you would divide 16 ÷ 2 and get 8 then it says gus has skydived 4 times more than nico so you do 8 × 4 and get 32 as your answer
Equation: 450 = 128 + 150 + n
work:
1st step:
128+150 = 278
2nd step:
450-278 = 172
answer: 172
3rd step (checking) :
450 = 128 + 150 + 172
450 = 278 + 172
450 = 450
