-7 x -4 - 8 = -20
To find (7 \times 8) using (4 \times 8), you can break down (7) into (4 + 3). First, calculate (4 \times 8), which equals (32). Then, calculate (3 \times 8) (which can also be done as (4 \times 8 - 4 \times 8 + 3 \times 8)), resulting in (24). Finally, add the two results: (32 + 24 = 56), so (7 \times 8 = 56).
8 x 7 + (4/4) = 57
To find how many times larger (4 \times 10^{12}) is than (8 \times 10^{7}), divide the two numbers: [ \frac{4 \times 10^{12}}{8 \times 10^{7}} = \frac{4}{8} \times \frac{10^{12}}{10^{7}} = 0.5 \times 10^{5} = 5 \times 10^{4}. ] Thus, (4 \times 10^{12}) is (50,000) times larger than (8 \times 10^{7}).
2 8/7 divided by 4/7 is the same as 8/7 times 7/4... The 7s then cancel out and you get 8/4 which is 2
7/8 x 4/5 = 28/40 or 7/10
Doubling 4 is 8. 8 times 7 is 56.
How about: 4 times (7-8/8) = 24
7 times with a remainder of 4 or 7.5 times
To find (7 \times 8) using (4 \times 8), you can break down (7) into (4 + 3). First, calculate (4 \times 8), which equals (32). Then, calculate (3 \times 8) (which can also be done as (4 \times 8 - 4 \times 8 + 3 \times 8)), resulting in (24). Finally, add the two results: (32 + 24 = 56), so (7 \times 8 = 56).
8 x 7 + (4/4) = 57
four
To find how many times larger (4 \times 10^{12}) is than (8 \times 10^{7}), divide the two numbers: [ \frac{4 \times 10^{12}}{8 \times 10^{7}} = \frac{4}{8} \times \frac{10^{12}}{10^{7}} = 0.5 \times 10^{5} = 5 \times 10^{4}. ] Thus, (4 \times 10^{12}) is (50,000) times larger than (8 \times 10^{7}).
2 8/7 divided by 4/7 is the same as 8/7 times 7/4... The 7s then cancel out and you get 8/4 which is 2
8
7/8 x 4/5 = 28/40 or 7/10
8(5+4)+7 = 79
7 with 4 remaining 60 - 4 = 56 = 8 x 7