Math Study Guide

Word Problem

100

Number 10

$4,923

200

Number 14

1,040 baked goods

300

Number 17 Part A

No because 4 x 105 is about 4 x 100, which is $400. 

400

Number 17 Part B

4 x 105=k

k=$420

$420 is close to my estimate of $400

Equations

100

Number 11

D

200

Number 12

C

300

Number 13

x=312 + 312 + 312

x=936

400

Number 15 

4 x 48 = b

b=192

500

Number 16

Choic3 1, Choice 3, Choice 5

Multiply

100

Number 18

A

200

Number 19

Bump 295 up to 300

6 x 300=1,800

1,800-6-6-6-6-6 OR 1,800--30= 1,770

300

Number 20 A

8, 160, and 2,400

400

Number 20 B

2,568

500

BONUS: Multiply 4,678 x 5

23,390