True or False
Word Problems
Area Model
Estimation
100
60 x 30 = 180
False
1,800
100
There are 28 boxes of pens in Danai's supply cabinet. Each box contains 30 pens. How many pens are in the supply cabinet?
840 pens
100
What would be the multiplication equation that matches the area model? 
33 x 13
100
Which would provide a reasonable estimate for each product?
25 x 40
26 x 37 and 28 x 31
200
75 x 100 = 750
False
7,500
200
Giana uses partial products to find 51 × 28. What is the equation that shows the partial products and the answer to Giana's multiplication problem?
* Hint - Draw area model and use those partial products
1,000 + 400 + 20 + 8 = 1,428
200
What would be the multiplication equation that matches the area model? 
35 x 17
200
Which would provide a reasonable estimate for each product?
30 x 30 
28 x 31
300
50 x 50 = 2,500
True
300
Chryzlyn has 21 marbles. Colten has 19 times as many marbles as Chryzlyn. How many marbles does Colten have?
399
300
What would be the multiplication equation that matches the area model? 
14 x 26
300
Which would provide a reasonable estimate for each product?
50 x 20 
51 x 21
400
80 x 45 = 3,500
False
3,600
400
Christi wants to use partial products to find 120 × 36. What expression can she use to find the partial products?
* Break apart the number and multiply the expanded form
(100 × 30 ) + (100 × 6 ) + ( 20 × 30 ) + (20 × 6)
400
Solve 78 x 12 using area model
936
400
Which equation shows the BEST estimate for 548 × 13?
550 x 10
500
78 x 15 = 1,170
True
500
Abdiel planted 138 rows of green beans with 17 plants in each row. How many green bean plants did Abdiel grow?
2,346
500
Solve 63 x 22 using area model
1,386
500
Which equation shows the BEST estimate for 247× 26?
250 x 30 or 250 x 25