Answer:
56
Step-by-step explanation:
2 times 56 is the same as 56+56.
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Answer:
a. 25.2
Step-by-step explanation:
Step one: 560×4.5=2,520
Step two: 2,520÷100=25.2
To do this addition mentally, you should do like this:
31 requires 9 more to become 40 and since we have a nine in our question, we would first do 31 + 9 = 40. Now you would finish it off with the remaining number which is six. 40 + 6 = 46.
<u>Steps</u>:
31 + 9 = 40
40 + 6 =46
Therefore, your answer would 46.
Answer:
Step-by-step explanation:
a 2m+5=13
2m=8
m=4
b 3m/5=-6
3m=-30
m=-10
c 4-5x=19
-5x=15
x=-3
d x/4-10=2
x=48
e -24=8(h+3)
-24=8h+24
-48=8h
h=-6
f -3+d/2=9
-3+d=18
d=21