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
51 + 10 = ______
33 + 10 = ______
25 + 10 = ______
84 − 10 = ______
47 − 10 = ______
26 − 10 = ______
83 + 10 = ______
64 − 10 = ______
5 × 10 = ______
74 + 10 = ______
1 × 10 = ______
60 + 10 = ______
60 + 20 = ______
26 + 20 = ______
72 − 10 = ______
62 + 10 = ______
44 − 10 = ______
83 − 10 = ______
13 + 20 = ______
23 + 20 = ______
