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
26 + 20 = ______
80 − 10 = ______
84 + 10 = ______
79 + 20 = ______
5 × 10 = ______
54 + 10 = ______
9 × 10 = ______
7 × 10 = ______
8 × 10 = ______
30 − 10 = ______
74 + 10 = ______
52 − 10 = ______
78 − 10 = ______
38 − 10 = ______
1 × 10 = ______
44 − 10 = ______
50 − 10 = ______
23 − 10 = ______
23 + 10 = ______
74 + 20 = ______
