Multiply 4-digits by 2-digits

1 Completethemultiplication.

1 2 3 4

× 2 1

1 2 3 4

2 4 6 8 0

(1,234× )

(1,234× )

2 Tommyiscalculating1,234×26

a) Completehisworkingout.

1 2 3 4

× 2 6

71 42 02 4

2 4 6 8 0

( × )

( × )

b) FillinthegridtocheckTommy’sworkingisaccurate.

Youmayuseplacevaluecounterstohelp.

× 1,000 200 30 4

20

6

3 Rosieiscalculating2,541×42

HereisRosie’sworking.

a) Rosiehasmadetwomistakes.Whatarethey?

b) Whatisthecorrectanswer?

4 Workoutthemultiplications.

a) 4,284×23 b) 2,142×46

Whatdoyounotice?

©WhiteRoseMaths2019

2 5 4 1

× 4 2

41 0 8 2

82 01 6 4

11 2 11 4 6

(2,541 × 2)

(2,541 × 40)

©WhiteRoseMaths2019

5 Amachinemakes2,734boxeseveryhour.

Themachineworksfor3hourseachday.

a) Howmanyboxeswillitmakein12days?

b) Comparemethodswithapartner.Werethereanyotherways

youcouldhaveworkedouttheanswer?

6 Workout378×7×12

Showyourmethodclearly.

7

a) Usingallthedigitcards,create4differentcalculationsandwork

outtheanswertoeach.

b) Writeyouranswersinascendingorder.

c) Whatisthesmallestproductthatcanbemade?

8 Amirscores4,680pointsinacomputergamefor12gamesinarow.

Whitneyscores2,512pointseverygamefor24games.

Whoscoresmorepoints?

Howmanymore?

2 3 4 5 61

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