Module 9 Review

Roman has 293 snap blocks. He uses 69 of the snap blocks to make an airplane and 32 to make a car. About how many snap blocks does Roman have left?

• about 100 because 200 − 100 = 100

• about 260 because 290 − 30 = 260

• about 200 because 300 − 100 = 200

• about 230 because 300 − 70 = 230

Which of these is another way to add 622 + 103?

• 600 + 100

• 625 + 100

• 620 + 130

• 650 + 100

What is 751 rounded to the nearest hundred and the nearest ten?

• 700 and 750

• 700 and 760

• 800 and 750

• 800 and 760

What is a reasonable estimate of the sum 379 + 24 using compatible numbers?

• 375+25=300

• 300+25=225

• 375+25=400

• 400+50=450

What is the unknown number in this equation

7+_=7

Yolanda uses friendly numbers to subtract. How should she adjust the difference?

238-29= 238-30+ _

What has the same value as 23+ (26+44)

(23+26)+ _

Add 356+64+106

Hattie sewed 148 squares together to make a quilt. To the nearest ten, how many squares did Hattie sew together?