Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
23 − 10 = ______
20 + 20 = ______
22 + 10 = ______
75 − 10 = ______
13 + 20 = ______
5 × 10 = ______
41 − 10 = ______
36 + 10 = ______
27 − 10 = ______
93 − 10 = ______
67 + 10 = ______
26 + 10 = ______
1 × 10 = ______
59 + 10 = ______
71 + 10 = ______
57 − 10 = ______
85 + 10 = ______
52 + 10 = ______
88 + 20 = ______
28 − 10 = ______
