BM Prep 1-5

What is 7-2?

• 6

• 5

• 4

14-​ (a)   =7

• 7
• 6
• 8

At a zoo, there are 5 koala bears climbing in trees.

If there are 11 koalas crawling on the ground, how many total koalas are at the zoo?

• 6

• 15

• 16

Study the number sentence.

2+3+4=____

• 2+3=5, then 5+4=8.

• 2+4=6, then 6+3=9.

• 3+4=7, then 7+2=10.

A postal worker has 18 packages to deliver. The postal worker delivers 7 of them.

Which number sentence could be used to find how many more packages there are left?

• 18-7=___

  7+18=___

• 18-7=___

  7+___=18

• 7+___=18

  7-___=18