Should I say anything?

Mo
So I've been a nanny for the same family for the past 2 years now and all throughout those 2 years they've had a cleaning service come once a week just to get a good solid clean and sanitation. Throughout the week I clean the floors and counters as need be. 
Recently the cleaning women fell ill and has surgery scheduled for next month and will NOT be coming for a longtime. 
The woman I nanny for then told me that I would be mopping the floors, vacuuming the basement and the upstairs, cleaning the microwave and the stove top and washing their sheets and making their bed. Pretty much everything the cleaning lady does minus the bathrooms because the mom said she would do those  all that on top of all my other duties like laundry, making lunches, helping the kids clean their rooms and getting them to all their activities on time, naps, and general organizing. 
They used to pay the cleaning lady to come over and uninterrupted- do all that and now I'm just supposed to find time throughout the busy day to do it AND watch the kids? I know mothers do a lot more but as a nanny I have rules from the parents I have to follow. The children have to be in the same room as me and l can't let them sit and watch tv for more than 20 minutes a day. 
 I asked if there was a cleaning lady from the same service who could come do it and she said the main cleaning lady has brought them before and she seriously doubts their ability and they "bang stuff around"
Should I raise a concern about this? I'm doing everything the cleaning lady does (minus bathrooms) but I'm not getting any of her pay- and I've handed the cleaning lady Her check before and she gets like 400$ to clean the whole house yet I get to do it for free???? I mean I get paid but that was to watch the kids and do light cleaning. Should I say anything? I feel like I'm getting taken advantage of. 
Disclaimer: I feel bad that I kept calling her cleaning lady- we don't call her that she has a name and we love her and the kids give her huge hugs and kisses when she comes over but I didn't think it was fair to. Drop her name. 
Edit: yes the kids could get involved in the cleaning process and sometimes they help but they don't do a good job and don't listen when I encourage them to "get this spot, I'll help you!" And then they drop the Vaccuum or the mop (the mom has asked me to bring my new 600$ Vaccuum over because it is better and lighter then hers and doesn't need a cord so "the kids can use it!" (Huge purchase by hubby and I- took us forever to save for) and either they decide that they're done and DROP my vaccum or the kids do a bad job then they let me take over and I think "hm I'll just lightly go over where they were to get a good clean" and the instant they see me clean or vaccum where they were -- they cry and refuse to help me ever again and throw a giant tantrum because what they did wasn't good enough and u don't "respect their hard work" 🙄🙄🙄🙄🙄 the oldest is a huge brat and I can't stand it when he helps me because he just gives me more work to do.