Estimation
Estimate 27 x 92
Between 1,800 and 2,700
What are the partial products for 67 x 12
134 (120 + 14) & 670 (600 + 70)
42 x 37 = 1,115
No, it is not reasonable.
29 x 15 = ??
435
Kyriaki's parents told her that for every multiplication problem she gets right they will give her 10 dollars. She gets 52 multiplications right over 3 weeks. How much money did her parents end up giving her?
She made 520 dollars.
Estimate 46 x 87
Between 4,050 and 4,500
What are the partial products for 22 x 39?
780 (600 + 180) & 78 (60 + 18)
19 x 52 = 1,000
Yes, it is reasonable.
36 x 41 = ??
1,476
Zoie drew 32 pictures. Each picture took 56 minutes to draw and color. How long did Zoie spend working on her pictures?
She spent 1,792 minutes working on her pictures.
Estimate 55 x 55
Between 2,500 and 3,600
What are the partial products of 50 x 27?
1000 and 350
74 x 36 = 2,121
No, the it is not reasonable.
53 x 49 = ??
2,597
Fanoula spent 45 minutes a night for two weeks reading. She spent 23 minutes a night for one week reading, and 30 minutes a night for the last week. How many minutes did she spend reading this month?
She read 1,001 minutes.
Estimate 65 x 82
Between 4,800 and 5,600
What are the partial products for 36 x 36?
1080 (900 + 180) and 216 (180+36)
87 x 67 = 5,214
Yes, it is reasonable.
63 x 75 = ??
4,725
Jacob spent time with his family watching movies. Over a month, they watched 38 movies. Each movie was (about) 94 minutes. How many minutes did they spend watching movies?
They spent 3,572 minutes watching movies.
Estimate 22 x 198
4,000
What are the partial products for 87 x 110?
8,700 (8000 + 700) & 870 (800 + 70)
199 x 99 = 18,000
No, it is not reasonable.
397 x 64 = ???
25,408
Alex and Cole were playing basketball after school and they made different point values for different shots. Free throws are worth 12 points, layups are with 14 points, and slam dunks are worth 18 points. Cole made 7 free throws, 3 layups, and 1 slam dunk. Alex made 3 slam dunks and 5 free throws, and 3 layups. How many points did each player earn and who won the game?
Cole scored 144 points and Alex scored 156 points. Alex won the game.