WEBVTT 00:00:01.330 --> 00:00:05.120 The given table shows the quantities of some ingredients used to bake a cake. 00:00:05.630 --> 00:00:08.310 What is the total weight of the ingredients as a mixed number? 00:00:09.120 --> 00:00:19.520 And we’ve got nought point five five pounds of flour, nought point four five pounds of milk, nought point three five pounds of sugar, and naught point one five pounds of butter. 00:00:20.760 --> 00:00:25.780 Now we’ve got to add up all those weights and then convert our answer to a mixed number. 00:00:26.980 --> 00:00:32.120 Now I’m quite happy adding with decimal numbers, so that’s what I’m gonna do to calculate the total weight. 00:00:33.320 --> 00:00:36.630 And to calculate the total weight, we could do this as a column addition. 00:00:36.670 --> 00:00:43.610 So just writing in all of our numbers like this, we’ve got five plus five plus five plus five is twenty. 00:00:43.700 --> 00:00:47.080 So that’s zero in the unit’s column carry two. 00:00:47.880 --> 00:00:55.940 And then in the next column, we’ve got five plus four is nine plus three is twelve plus one is thirteen plus two is fifteen. 00:00:56.350 --> 00:00:58.660 So that’s a five in that column carry one. 00:00:58.910 --> 00:01:02.820 And then we’ve got zero plus zero plus zero plus zero plus one is one. 00:01:03.200 --> 00:01:07.130 So the answer is one point five zero pounds or one point five pounds. 00:01:08.810 --> 00:01:17.350 But another quick mental method for doing that is to notice that nought point five five and nought point four five added together make one whole one. 00:01:17.680 --> 00:01:22.700 And nought point three five and nought point one five added together make nought point five. 00:01:23.550 --> 00:01:28.880 So we could have spotted quite easily one plus nought point five is equal to one point five. 00:01:31.190 --> 00:01:33.440 Anyway, whichever method you do it is not a problem. 00:01:33.470 --> 00:01:37.740 We’ve got our answer, one point five, but we’ve got to convert that to a mixed number. 00:01:38.870 --> 00:01:45.480 Well one point five is one whole number plus nought point five, a half of a whole number. 00:01:46.620 --> 00:01:51.250 So that’s gonna be one plus a half, which is equal to one and a half. 00:01:52.520 --> 00:01:55.380 So our answer is gonna be one and a half pounds.