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
38 + 10 = ______
93 − 10 = ______
64 − 10 = ______
54 + 20 = ______
20 + 20 = ______
8 × 10 = ______
20 + 10 = ______
2 × 10 = ______
84 − 10 = ______
26 + 10 = ______
96 − 10 = ______
99 − 10 = ______
33 + 10 = ______
5 × 10 = ______
31 − 10 = ______
61 − 10 = ______
13 + 20 = ______
36 + 10 = ______
6 × 10 = ______
89 + 20 = ______
