Multiply Multiples of 10
20 x 60
1,2000
Describe what an array is
An array is a grid of place value blocks to help solve multiplication problems
21 x 31
20 x 30 = 600
44 x 92
40 x 90 = 3,600
How many siblings does Ms. Hansche have?
1
30 x 70
2,100
Sketch an array of a box that is 20 ft wide and 15 ft long.
19 x 81 =
20 x 80 = 1600
81 x 74
80 x 70 = 5600
Where did Ms. Hansche go to college and what sport did she play in college?
Coe College and Basketball
80 x 90
7,200
Use an array to solve 30 x 90
78 x 45
80 x 50 = 4000
69 x 28
70 x 30 = 2100
What is Ms. Hansche's favorite fast food? I'll give you two options...
Chik-Fil-A and Chipotle
16,000
Draw an array to solve 78 x 30
349 x 589 =
300 x 600 = 180000
83 x 88
80 x 90 = 7200
What is Ms. Hansche's absolute favorite food?
Peanut Butter :)))))
600 x 900
540,000
Angel sold 15 magazine subscriptions for $30 each. Walk sold 22 subscriptions for $20 each. Use arrays or area models to explain who raised more money.
Angel raised $450 and Walt raised $440
Lenore rounds each factor to the nearest ten to estimate the product of 51 x 37 as 1,500. Is Lenore's estimate reasonable? Explain.
No 50 x 40 = 2,000. 1,500 is not close enough.
Nathan estimates 67 x 36 by finding 70 x 40. Will Nathan's estimate be greater than or less than the actual product? Estimate.
Greater than the actual product because in both cases you are rounding up.
What is Ms. Hansche's Middle Name? Hint: Starts with a J.
Jayne