Multimeter reading double voltage
Figure 1. A comparison with an analogue meter. 1.5 volt will barely move the pointer and any reading will have little precision.
A 200 V meter is not a suitable instrument for measuring a 1.5 V cell. The resolution isn't available at the accuracy you require. Digital meters have specifications for error typically as a percentage of full scale ± a couple of digits of the display. That's what you're seeing.
I've never seen a &quot;multimeter&quot; that had a minimum V DC range of 200 V. For low voltage measurement you'll need a more versatile meter.