When you subtract, you may need to regroup. You can change 23
pencils to 1 group of TEN and 13 ONES.
Look at the pictures below.
1 TEN
1 TEN
3 ONES
OR
1 TEN
13 ONES
Both equal 23 pencils.
33 can be written as:
3 TENS and 3 ONES or 2 TENS and 13 ONES.
Regroup the following numbers.
21 can be written as:
2 TENS and 1 ONE or 1 TEN and
ONES.
44 can be written as:
4 TENS and 4 ONES or 3 TENS and
ONES.
55 can be written as:
TENS and 5 ONES or 4 TENS and
ONES.
79 can be written as:
7 TENS and
ONES or
TENS and 19 ONES.
37 can be written as:
3 TENS and
ONES or
TENS and 17 ONES.
68 can be written as:
6 TENS and 8 ONES or
TENS and 18 ONES.
83 can be written as:
TENS and 3 ONES or 7 TENS and
ONES.
72 can be written as:
TENS and 2 ONES or
TENS and 12 ONES.
91 can be written as:
9 TENS and 1 ONE or 8 TENS and
ONES.
64 can be written as:
6 TENS and
ONES or 5 TENS and
ONES.
Elementary & Middle School Lessons & Self-Correcting Tests for Children in all Subject Areas. If you have found an error or would like to make comments on this lesson,
please email us at:
MySchoolhouse.online@gmail.com
Copyright 1999-2024 by Educational Designers, LLC. All rights reserved. Lessons & Tests in Math, Reading, Spelling, Science, Language, and Social Studies.
"This site uses cookies from Google to deliver its services and analyze
traffic. Your IP address and user-agent are shared with Google along with
performance and security metrics to ensure quality of service, generate
usage statistics, and to detect and address abuse."
