Tuesday, October 20, 2015

Many Ways to Solve

In math, we have been spending a great deal of time proving our work. Sometimes we do it by using the inverse operation, drawing pictures, estimating and even making simpler problems to solve. Come up with a problem you can solve in three different ways and add it as this week's blog post.


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15 comments:

  1. AnonymousOctober 20, 2015 at 6:57 PM

    (kx3)+2=5 K=1 Sam has 3 equal groups of (k) balls. Then he adds two more balls. He has 5 balls. How many balls are in 1 group.
    1_ (5-2):3=1
    2_ 1x3=3+2=5
    3_ x x x +x x=xxxxx Christian

    ReplyDelete
  2. UnknownOctober 21, 2015 at 12:32 PM

    Bobs yard is 10 yards long and 29 yards wide. What is the area of Bobs yard.

    10x29=290
    (10x20)+(10x9)=290
    (10x30)-(10x1)=290
    Anna

    ReplyDelete
  3. AnonymousOctober 21, 2015 at 12:45 PM

    Sid had a question 43x40. What was the answer.

    1720
    40(40+3)=1720
    (40x3)+(40+3)=1720

    ReplyDelete
  4. AnonymousOctober 21, 2015 at 12:47 PM

    Jenna will buy a pool. She wants it to be 20 yards wide and 35 yards long. What will the area of the pool be?

    Answer:
    1. 20 x 35 = 700 yards
    2. 20 x 35 = 20 (30 + 5) = 700 yards
    3. 20 x 35 = (20 x 40) - (20 x 5) = 700 yards

    Vela

    ReplyDelete
  5. AnonymousOctober 21, 2015 at 12:48 PM

    Vela's pool is 25 yards long and 15 yards wide. What is the area of Vela's yard?

    25x15=425
    (25x10)+(25x5)=425
    (25x30)-(25x50)=425

    ReplyDelete
  6. alexander genovOctober 21, 2015 at 12:55 PM

    Christian cut 20 trees per day for 2 days and he cut 30 trees per day for the next 2 days
    1) 20+20+30+30=100
    2) 2x20 + 2x30 =100
    3) you can find the average tree cut per day and multiplied by 4 days
    20+30=50
    50 : 2 = 25x4=100

    ReplyDelete
  7. AnonymousOctober 21, 2015 at 1:00 PM

    Ava has a garden it is 18 feet long and 14 feet wide what is the area of the garden?
    18x14=252 feet
    10x8+4x10=252 feet
    14x10+14x8=252 feet

    ReplyDelete
  8. AnonymousOctober 21, 2015 at 1:16 PM

    2(2+5)=x
    (2+5).2=x
    (2.5)+(2.2)=x
    X=20

    ReplyDelete
  9. AnonymousOctober 21, 2015 at 2:19 PM

    Carly has a pool that is 34 feet wide and 20 feet tall. What is the area of the pool?

    1. 20 x 34= 680
    2. 20(30+4)=680
    3. (20x40) - (20x6)=680
    The answer is 680 feet

    ReplyDelete
  10. brendan jOctober 21, 2015 at 3:35 PM

    13 x 101 = 13 x(100+1) =(13x100)+(13x1)=1300 + 13=1313

    101x13=101x(10+3)=(101 x 10)+(101 x 3)= 1010 + 303= 1313

    101
    x13
    1,313

    ReplyDelete
  11. AnonymousOctober 21, 2015 at 5:50 PM

    Paris had 40 rocks and 53 pebbles,she wants to multiply 40x53 how can she solve it?

    1.40x53=2,120
    2.(40x50)+(40x3)=2,120
    3.(40x20)+(40x3)+(40x30)=2,120
    the answer is 2,120

    ReplyDelete
  12. AnonymousOctober 22, 2015 at 4:28 AM

    Saad has 50 toys 49 batteries. He wants to find out how many possessions he has. He wants 3 ways.

    Answer
    50•49=2450
    (50•40)+(50•9)=2450
    (50•50)-(50•1)=2450

    ReplyDelete
  13. AnonymousOctober 22, 2015 at 3:56 PM

    Wesley has a desk that is 49 inches wide and 60 inches length. What is the area.

    1. 60X49=2940
    2. 60X(40X9)=2940
    3. (60X40)+(60X9)=2940

    ReplyDelete
  14. AnonymousOctober 23, 2015 at 4:21 AM

    Megan has a book that is 65 centimeters long and 89 cm wide. What is the area?
    80x60=4800
    80x5=400
    60x9=540
    5x9=45
    =5785 cm

    ReplyDelete
  15. AnonymousOctober 23, 2015 at 12:24 PM

    DJ has 37 photos. Bibby has 40 times as many photos. how many photos does Bibby have?


    37.40=1480 photos
    40(30+4)=1480 photos
    34(10+30)=1480 photos
    (40.30)+(40.7)=1480 photos

    ReplyDelete

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