K5Print Free printable worksheets for K–5

Week 4 of 8

Week 4

1st Grade → 2nd Grade · Missing addend and Sight words primer

Math

Missing Addend

Finding the unknown part when the total and one part are given: 7 + ___ = 12. Second half of first grade.

The mistake to watch for. Adding the two visible numbers, answering 19 for 7 + ___ = 12. The equals sign is read as "the answer comes next" rather than "the same amount".

How to help. Cover the total with your hand and ask what is missing, not what to add. Balance scales help — both sides must match.

A worked example

Try 6 + ___ = 11. Start at 6 and count up to 11: 7, 8, 9, 10, 11. That is 5 steps, so the missing number is 5.

All missing addend sets, with answer keys →

Reading & language

Sight Words: Grade 1

A second wave of high-frequency words to recognize instantly. First grade, once pre-primer sight words are automatic.

The mistake to watch for. Re-sounding out words that were already memorized in kindergarten, because a new, less familiar batch makes a child doubt words they actually already know.

How to help. Mix review words from the pre-primer list in with the new ones, so recognition speed stays the visible goal rather than starting over.

A worked example

Circle 'was' in: saw was has. Sight words like 'was' do not sound the way they are spelled, so it helps to spot the whole word at once.

All sight words: grade 1 sets, with answer keys →

Words for this week

add
To put numbers together to find how many in all.
sum
The answer you get when you add.
total
All of the things added together.
equal
The same amount. The sign = means "is equal to".
missing
Not there yet. A missing number is the one you need to find.
sight
A word you learn to know at a glance, without sounding it out.
word
A group of letters that has a meaning.
read
To look at words and say or understand them.
letter
One of the symbols we use to write words, like a, b or c.

Read this week

Oder

A short earth & weather article from our Learn library, chosen for this reading level. Read it together, then ask your child to tell you one new thing they learned.