-- You can use (4 x 20) and (4 x 2) .
-- Please don't tell me what to think.
9 x 38 = 9 x (30 + 8) = (9 x 30) + (9 x 8)
No, it is simpler than that. Simply add the two magnitudes. The direction will be the same as the parallel vectors.
You don't. You could measure each side and calculate the area of each face. Using Pythagoras's theorem only makes it simpler!
Think of times table multiplication, like in elementary school. add the ones 2*5, to the 1s column times the 10s column 80 to the 10s times the ones column 150 to the tens times the tens column 1200 so 10 +80 + 150 + 1200 = 1440 * * * * * Or 32*45 = 16*90 (1) 16*90 = 8*180 (2) 8*180 = 4*360 (3) 4*360 = 2*720 (4) 2*720 = 1440
Since there are 2/10 problems that are missed, there are 8/10 problems that are correct. 8/10 is 0.8 which is equal to 80%.
Two simpler problems? It's not clear what this means.Maybe 2x44 or 8x11? - but they're not really simpler.Maybe (2x2)(2x11), but that doesn't get you closer to the answer.Maybe 4x20=80, 4x2=8 and 80+8=88 - but that's 3 simpler problems.If this is not your question, please clarify and ask the question again. :-)
38
9*2*19 18*19
7 times thirty plus 7 times 8 = 210+56=266
38*10-38 or 9*40-9*2. The answer of that is 342, if you haven't figured it out yet.
You can find peace by meditating or quiet time to think about problems so that your soul can be released
9 x 38 = 9 x (30 + 8) = (9 x 30) + (9 x 8)
Western Central Europe simpler answer :)
22 * 2 =44 44 * 2 = 88 Partitioning 22 is not an option since that leads to 3 problems, not 2: 4 * 20 = 80 4 * 2 = 8 and 80 + 8 = 88
Science is a great help in education because you have logical things in science and it gives you the mythodology to to find the solution of problems. All the subjects become simpler if you can make a mathematical model.
When we think up a possible solution, we have to test it in order to find out if it actually works.
7x38=266 7x8=56 +7x3=21= 210 because the 3 is in the 10 position so you add a 0 on the end.