Post on 09-Sep-2018
transcript
Multiplication
GRADE 2
WORKSHEETS
Grade 2 | MULTIPLICATION | 2.OA.3, 2.OA.4 1Copyright © 3P Learning
Multiplication – equal groups
1 Drawandfinishthenumberfacts. a Draw3cupcakesoneachplate.
Howmanycakes?
groupsof is altogether.
b Draw4facesineachwindow.
Howmanyfaces?
groupsof is altogether.
c Draw2catsoneachmat.
Howmanycats?
groupsof is altogether.
Grade 2 | MULTIPLICATION | 2.OA.3, 2.OA.4 2Copyright © 3P Learning
Multiplication – equal groups
You will need: pencils
What to do:Thesechildrenareallturning5today.
a Drawthecorrectnumberofcandlesonthecakes.
b Howmanycandlesaretherealtogether?
What to do next:Howdidyouworkitout?Explainyourstrategy.
TaraTimTinaTom
3Copyright © 3P Learning Grade 2 | MULTIPLICATION | 2.OA.4
1 Howmanyarethere?
2 Draw:
Multiplication – groups and arrays
a 2groupsof3flowers
Howmanyflowers?
b 2rowsof3flowers
Howmanyflowers?
Wecanarrangeobjectsintogroupsorintorows.Thisis2groupsof4apples. Thisis2rowsof4apples.
Thereare8applesaltogether. Therearestill8applesaltogether.
a
rowsof is
c
rowsof is
b
groupsof is
d
groupsof is
4Copyright © 3P Learning Grade 2 | MULTIPLICATION | 2.OA.4
Multiplication – meaning of × symbol
1 Howmany?
a 3 rowsof 4 is
× =
b 2 rowsof is
× =
c groupsof is
× =
2 Draw3rowsoffaces.Put3facesineachrow.
Weknowthat…+meansaddorjoin −meanssubtract =meansthesameasWhatdoes×mean?Itmeans“of.”
2×5 Wehave2rows of 5
2rowsof5is10altogether.2 × 5 = 10
5butterflies
5butterflies
3 rowsof 3 is
3 × 3 =
5Copyright © 3P Learning Grade 2 | MULTIPLICATION | 2.OA.4
Multiplication – equal groups
1 Arethesegroupsequal? themiftheyareand iftheyarenot.
2 Howmanyarethere?
a
2 platesof is altogether.
b
basketsof is altogether.
c
rowsof is altogether.
Whenwecountingroups,thegroupsmustbeequalorthe same.Howmanycarrotsarethere?Let’slookattheseequalgroups.
3 3 3
3bunchesof3is9altogether.
a
c
b
d
6Copyright © 3P Learning Grade 2 | MULTIPLICATION | 2.OA.4
Multiplication – equal groups
1 Fillinthemissingnumberstofinishthesefacts.
2 Drawdotsonthedicetomatch.Finishthenumberfacts.
3 Xianghad5candybags.Sheput4lollipopsineachbag.Howmanylollipopsdidsheuse?Draworusecounterstohelpyousolvetheproblem.Showyoursolution.
a
2 groupsof 5 =
c
groupsof =
b
groupsof =
d
groupsof =
a
4groupsof3=
c
2groupsof5=
b
3groupsof2=
d
4groupsof4=
7Copyright © 3P Learning Grade 2 | MULTIPLICATION | 2.OA.4
Multiplication – groups and arrays
Wecanarrangeobjectsintogroupsorintorows and columns.Thisis2groupsof4 mangoes. Thisis2rowsof4mangoes.Thereare8mangoesaltogether. Thereare8mangoesaltogether.
1 Lookatthepicturebelow.HelpTonyworkouttheamountsoffruitandvegetableshehasinstock.
a
groupsof is
c
groupsof is
e
rowsof is
b
groupsof is
d
rowsof is
f
rowsof is
8Copyright © 3P Learning Grade 2 | MULTIPLICATION | 2.OA.4
2 Howmanydotsarethere?
Didyoucounteverydotordidyouuse adifferentstrategy?Explainhowyoudidit.
Multiplication – groups and arrays
1 Howmanydotsareinthearrays?
a
rowsof is
c
rowof is
b
rowsof is
d
rowsof is
Whenweputobjectsintorowsandcolumnslikethiswecallitanarray.Arrayscanmakeiteasiertofindhowmanyobjectsthereareinagroup.Wecanuseskipcountingtohelp.
2rowsof5is105
52rows
9Copyright © 3P Learning Grade 2 | MULTIPLICATION | 2.OA.4
1 Howmanydotsareinthearray?
2 Howmanydogsarehere?Recordusingrepeatedaddition.
Multiplication – repeated addition
Onewaytodescribemultiplicationis repeated addition.Lookatthisarray.Thereare3rows.Thereare5dotsineachrow.Wecanthinkofthisas:
5 + 5 + 5 = 15
a
rowsof is
+ =
c
rowsof is
+ + + =
b
rowsof is
+ =
d
rowsof is
+ + + =
5
5
5
3rows