Missing Number Equations - Solve and Check

Name: ใบงานหาจำนวนที่หายไป หาคำตอบและตรวจสอบ
SKU: MTH-49-B1-1
Price: 19.00 THB
Availability: InStock

Worksheet images

Cover artwork for Missing Number Equations - Solve and Check, Grades 1-3

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Worksheet details

CategoryNumbers and Algebra

Grade bandGrades 1–3 (P.1–P.3)

Difficulty3 / 5

Activity formatFill in the blank

Worksheet codeMTH-49-B1-1

File typePDF

Content languageEnglish + Thai

Price19 Baht

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The preview is watermarked and lower resolution than the file you receive.

Missing Number Equations - Solve and Check

Mathematics Numbers and Algebra worksheets on Missing Number Equations for Grades 1–3 (P.1–P.3), difficulty 3/5. PDF, downloadable as soon as payment clears.

Curriculum indicators practised

Linked curriculum indicators

ค 1.1 ป.2/4Find the value of the unknown in addition and subtraction number sentences involving counting numbers up to 1,000 and 0
ค 1.1 ป.2/5Find the value of the unknown in multiplication number sentences of a 1-digit number and a number of up to 2 digits
ค 1.1 ป.2/6Find the value of the unknown in division number sentences with a dividend of up to 2 digits and a 1-digit divisor, where the quotient has 1 digit, both with and without a remainder

Before you begin

Teaching guide

What children will practise

Find the missing number in addition, subtraction, multiplication and division number sentences, then check by putting the answer back into the sentence.

What's in the worksheet

10 questions, 20 points - Example: □ + 4 = 9, so □ = 5 - 3 addition items, e.g. 18 + □ = 30, and 3 subtraction items, e.g. □ - 9 = 16 and 90 - □ = 35 - 2 multiplication items (□ x 4 = 28, 8 x □ = 56) and 2 division items (□ ÷ 5 = 9, 72 ÷ □ = 8) - Every item has a "check" line for writing the completed sentence; the separate answer key shows the answer and the check for each

How to use it in class

Use near the end of a unit once children understand how addition links to subtraction and multiplication to division. Allow about 20 minutes. - Work Q3 and Q4 on the board first, so children see that a box in a different position needs a different step - Follow up by having children write two missing-box puzzles of their own and swap with a partner to solve and check

Common sticking points

- In Q3 (□ - 9 = 16), working out 16 - 9 = 7 instead of adding to get 25 - In Q9 (□ ÷ 5 = 9), trying to divide again instead of multiplying 5 x 9 = 45 - Filling the box but skipping the check line, so an error goes unnoticed

Teaching ideas

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What you get

Download it as soon as payment clears. The link stays in your account, so you can fetch the file again whenever you need it.

A print-ready A4 PDF, without the watermark
Instructions and content in one file, nothing to download separately
A private download link, kept in your account
Unlimited reprints for your own classroom

Ready for your next lesson

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