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
66 − 10 = ______
92 − 10 = ______
58 − 10 = ______
74 + 10 = ______
8 × 10 = ______
41 + 10 = ______
58 + 10 = ______
60 − 10 = ______
9 × 10 = ______
47 + 20 = ______
88 + 10 = ______
53 + 10 = ______
80 − 10 = ______
52 + 10 = ______
2 × 10 = ______
17 + 10 = ______
5 × 10 = ______
67 + 20 = ______
24 + 20 = ______
28 + 20 = ______
