36.72 ÷ 30 = 1224
Showing my thinking: Use front end estimation. ( taking the first digit)
Step 1: 36.72 will turn into 30.
Step 2: 30 will stay the same. So it will be 30 ÷ 30, 30÷30 = 1
Step 3: Now you know that the answer be approximately 1
Answer: 36.72 ÷ 30 = 1.224
Question # 6 b) in your textbook: Estimate then calculate the answer.
4.56 ÷ 0.8 = ______
Estimation:
Step 1: Round 4.56 to the nearest whole number, which is 5.
Step 2: Change 0.8 to 0.5
Step 3: 5 ÷ 0.5 = 10
Answer: 4.56 ÷ 0.8 = 5.7
Question # 12 in your textbook: A contractor charged $398.75 to move the gravel for a garden. The contractor charges $72.50 per hour. How long did she work? Estimate, then calculate the answer.
Estimation:
Step 1 : Change $ 398.75 to $350.00
Step 2 : Change $ 72.50 into $ 70.00
Step 3 : 350 ÷ 70 = 5. That means the contractor worked for about 5 hours.
Answer: 398.75 ÷ 72.50 = 5.5 , the contractor worked for 5 and half hours.
If you need help on multiplication check this link out.
16 comments:
GREAT JOB MARY !!!! YOU COULD HAVE ADDED A VIDEO PLUS A PIC SO PEOPLE WOULD BE MORE ATTRACTED TO THIS POST. AMAZING JOB MARY n_n
Good job Mary next time add video to help and its nice that you put the link, anyways good job.
GOOD JOB MARYY! I like how you explained your estimations it was very clear. I think you should add a video or a picture to help your scribe out. (: I liked how you made the important things stand out (:
Good job Mary but I think you should have added a little more color and maybe a video , but I like the way you explained things ! But good job still : D
I like your explanation. It's really clear. It could have been better if you put a video and a picture. Good Job though!
Nice job! I like how you rounded the numbers to the nearest whole to make is easier . Next you should try adding a video because it's kind of boring just reading all the time.
Good job Mary! The steps really helps. I like the game its really fun and it helps you learn multiplication. You might want to put a video and image to make it even better! anyways great job on your post!
Good job but you might wanted to put a picture and a video. But anyways good job
Good job mary ! I like how you showed the steps, but you might want to add a video or maybe a picture. Anyways great post ! And by the way i like the link.
Great job! I like how you explained the answers it really made sense! I also liked the link that you added I tried it and it was fun! You could have put a video or a picture though.
Goodjob! I like how you explained how to used front end estimation it really make sense and the link really help me alot because i can practice my multiplication.
Nice Job Mary! I like your explination, but next time you should add a video or maybe an image so we can understand it better, but for the rest of them,awesome job!
I liked your explanations but I think you should have added pictures or a video so people would understand you better, overall you did a great job!
Good job! I really like your explanation of your answer and solution, it really make sense! Maybe you can add some video or image next time. Overall, you did a great job!
Good job I like how you changed the colors you might want to put a video next time
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