Multiplication 0 rules
30x4
120
51x7
357
Which is greater 1/2 or 1/4
1/2
Which is bigger?
0.75 or 0.8
0.8
41x8
328
33x20
660
429×6
2,574
Which is bigger?
7/8 or 3/4
7/8
Which is bigger?
0.5 or 0.3
0.5
23x21
483
40x90
3,600
28x23
644
Which is bigger? 66/100 or 8/10
8/10
Which is bigger?
0.34 or 0.3
0.34
Alexis makes candles and soaps. She made 25 trays of candles, with 8 candles on each tray. She also made 20 trays of soaps, with 12 soaps per tray.
How many more soaps than candles did Alexis make?
Hailey got the answer 4,000 more soaps than candles. Is Hailey's estimate reasonable? Use estimation to help you answer this question.
Hailey's estimate is not reasonable. If you round (25 to 30) and (8 to 10 ) you would get 300 if you multiplied. If you multiply 20 times 12 rounded to 10, you would get 200. If you added these together for the final answer you would get 500 as a close answer.
53x20
1,060
53x34: Choose the best estimation for this multiplication.
A. 1,600
B. 1,000
C. 1,500
D. 2,000
C. 1,500
Which is greater? 6/10 or 55/100
6/10
Which is bigger?
0.47 or 0.8
0.8
Javi builds toy robots and toy trucks. He built 20 trays of robots, with 11 robots on each tray. He also built 14 trays of trucks, with 17 trucks per tray.
How many more trucks than robots did Javi build?
18
Noah collects Pokémon cards. He has 10 binders of fire-type cards, with 20 cards in each binder. He also has 30 binders of water-type cards, with 20 cards in each binder. How many more fire type cards does he have than water type cards?
Write an equation tom solve this problem. Use a letter to stand for the unknown number.
(10x20)-(30x20)= F
Isaac paints toy cars and airplanes. He painted 22 trays of cars, with 14 cars on each tray. He also painted 16 trays of airplanes, with 18 airplanes per tray.
How many more airplanes than cars did Isaac paint?
20 cars
Luna and Christian each got a strip of bubble gum tape exactly the same size. Allison chewed 2/3 of her strip. Zoey chewed 5/6 of her strip.
Zoey chewed (more, less, or the same amount) of gum than Allison?
more
Which is bigger?
1.25 or 1.2
1.25
Nathalie bakes loaves of bread and pies. She baked 12 trays of bread, with 10 loaves on each tray. She also baked 15 trays of pies, with 16 pies on each tray.
How many more pies than loaves of bread did Nathalie bake?
120