Unit 1 - Math

Written Expression

100

To find 73x9, I find 73 times 10 and remove 1 group of 73. 

(73x10) - (1x73)

200

To find 23 times 8, I double and halve.

26x4

300

Kaden divided 96 by 12 and then multiplied by 6. 

(96/12)x6

400

Kevin was asked to to add 6 and 9 then multiply the sum by 7 and 8 and then subtract 13. 

(6+9)x(7x8)-13

Volume

100

(12x4)x2

96 cm3

200

(6x7)x10

420 cm3

300

(2x8)x5

80cm3

400

SHOW PICTURE

(5x4)x5

100cm3

500

SHOW PICTURE

(2x2)x6

24 cm3

PEMDAS

100

60-10x2+8

48

200

(3x6)-(10+2)

6

300

[2x(15-10)+10]

20

T 0R F&Fill in the blank

100

(something) x 24 = 18x12

9

200

47 x 98 = (something x47) -(2x47)

100

300

Fill in the blank 

180x16 = 8 x something 

360

400

T OR F

67 X 18 = (67X20) - (67X2) 

true

500

(2X5)X4 = 2X(5X4)

true

DIVISION

100

Four friends made 55 cupcakes and shared them equally. How many cupcakes did each friend get?

13 3/4 cupcakes

200

There are 55 kids in the After-School Club. Tomorrow they are going to the Zoo. If each car can carry 4 kids, how many cars will they need to get to the zoo?

14 cars!

Don't Split Up People!!

300

Emma and her 3 friends did chores for Emma's dad on Saturday. They earned $55.00 and split it evenly. How much did each of the 4 children get?

$13.75

400

A box holds 396 balls. Each layer has 33 balls. How many layers does the box have?

12 layers

500

Race cars can drive about 5 miles on 1 gallon of gasoline. If a race car goes 265 miles in one race, about how many gallons of gasoline will it use? 

53 gallons