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004 - Lesson 4 Mastery Check (A7)

Last updated almost 6 years ago

6 Nsɛmmisa

Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

Subtracting Integers

1

Asemmisa {{asɛmmisaAhyɛnsode}}

1.

When we model addition, we add integer pieces. What do we do to model subtraction?

1

1

1

1

1

Asemmisa {{asɛmmisaAhyɛnsode}}

6.

Find the difference:
-2 - (-7) =

Asemmisa {{asɛmmisaAhyɛnsode}}

2.

If you do not have enough integer pieces to take away (for example in the problem 4 -7 = ?), what do you do?

Add yellow pieces until you have enough

Add 3 red pieces

Add zero pairs until you have enough

Asemmisa {{asɛmmisaAhyɛnsode}}

3.

Find the difference of the problem below and show ALL your work:
-5 - (-2) =

Asemmisa {{asɛmmisaAhyɛnsode}}

4.

Find the difference of the problem below and show ALL your work:
2 - 4 =

Asemmisa {{asɛmmisaAhyɛnsode}}

5.

Find the difference of the problem below and show ALL your work:
-3 - (-5) =