Subtract mixed numbers 2 Dexter’s method...Subtract mixed numbers 1 Complete the subtractions. Use...
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Subtract mixed numbers 1 Complete the subtractions. Use the bar models to help you. a) 15 8 – 1 2 = b) 1 7 8 – 3 4 = c) 1 1 2 – 3 8 = 2 Dexter and Whitney are using number lines to work out 1 5 6 − 1 3 Dexter’s method Whitney’s method What is the same and what is different about these methods? Use one of the methods to work out 1 5 8 – 3 16 1 5 8 3 16 1 5 8 – 3 16 = © White Rose Maths 2019 2 6 1 2 6 1 5 6 +1 + 3 6 1 + 3 6 = 1 1 2 1 3 = 2 6 1 3 1 1 5 6 + 2 3 + 5 6 4 6 + 5 6 + 9 6 =1 1 2 2 3 = 4 6
Transcript of Subtract mixed numbers 2 Dexter’s method...Subtract mixed numbers 1 Complete the subtractions. Use...
Subtract mixed numbers
1 Completethesubtractions.
Usethebarmodelstohelpyou.
a)
158
– 12
=
b)
178
– 34
=
c)
112
– 38
=
2 DexterandWhitneyareusingnumberlinestoworkout156
− 13
Dexter’s method
Whitney’s method
Whatisthesameandwhatisdifferentaboutthesemethods?
Useoneofthemethodstoworkout158
– 316
158
316
158
– 316=
©WhiteRoseMaths2019
26
1 26
1 56
+1 + 36
1 + 36 = 1 1
2 13 = 26
13
1 1 56
+ 23
+ 56
46 + 5
6 + 96 =1 1
2 23 =
46
©WhiteRoseMaths2019
3 Completethesubtractions.
a) 314
– 524= d) 7
56
– 1324=
b) 3316– 1
8= e) 449
– 427=
c) 256
– 23= f) 6
1112
– 34=
4 Ajugcontains135
litresoforangejuice.
Evapours 415
litresintoaglass.
Howmuchorangejuiceisleftinthejug?
Thereare litresoforangejuiceleftinthejug.
5 Findthreedifferentwaystocompletethecalculation.
3 5–
20=31
20 3 5–
20=31
20
3 5–
20=31
20
Arethereanyotherwaystocompletethiscalculation?
6 Threechildrentakepartinthrowingcompetitions.
Hereisthetableofresults.
Javelin ShotPut Discus
Dexter 1514m 7
5
12m
Amir 1338m 12
78m
Annie 9m 115
12m
Usethecluestocompletethetable.
• Annie’sjavelinthrowis1112
mlessthanDexter’s.
• Amir’sshotputthrowis 34
mlessthanAnnie’s.
• Dexter’sdiscusthrowis 12
mlessthanAmir’s
