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Addition and Subtraction Basics

Jardim · Trimestre 1 · CCSS: K.OA.A.1, K.OA.A.2 · Dificuldade: fácil

Problema 1 de 5

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Problema 1

You have $2$ red blocks and $1$ blue block. How many blocks do you have in all?

$2 + 1 = \underline{\quad}$

Atalhos: ← → navegar · G gabarito · 1 acertei · 2 errei · 3 pular

1. You have $2$ red blocks and $1$ blue block. How many blocks do you have in all?

$2 + 1 = \underline{\quad}$

2. There are $4$ birds sitting on a fence. Then $1$ bird flies away. How many birds are left on the fence?

$4 - 1 = \underline{\quad}$

3. Maria has $3$ crayons. Her friend gives her $2$ more crayons. How many crayons does Maria have now?

$3 + 2 = \underline{\quad}$

4. There are $5$ cookies on a plate. You eat $2$ cookies. How many cookies are left?

$5 - 2 = \underline{\quad}$

5. A basket has $1$ apple and $3$ oranges. How many pieces of fruit are in the basket?

$1 + 3 = \underline{\quad}$

1. Count: start at $2$ , then count $1$ more: $3$ .

$2 + 1 = 3$

You have $3$ blocks in all.

2. Start with $4$ birds. Take away $1$ : count back from $4$ — that gives $3$ .

$4 - 1 = 3$

There are $3$ birds left on the fence.

3. Start with $3$ crayons. Count on $2$ more: $4, 5$ .

$3 + 2 = 5$

Maria has $5$ crayons now.

4. Start with $5$ cookies. Take away $2$ : count back from $5$ — $4, 3$ .

$5 - 2 = 3$

There are $3$ cookies left.

5. Start with $1$ apple. Count on $3$ more: $2, 3, 4$ .

$1 + 3 = 4$

There are $4$ pieces of fruit in the basket.

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