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
54 + 20 = ______
93 − 10 = ______
74 − 10 = ______
20 + 10 = ______
5 × 10 = ______
24 + 20 = ______
15 + 20 = ______
47 − 10 = ______
57 + 10 = ______
22 + 20 = ______
58 + 20 = ______
3 × 10 = ______
70 + 20 = ______
48 − 10 = ______
42 + 10 = ______
49 + 20 = ______
8 × 10 = ______
98 − 10 = ______
25 + 10 = ______
6 × 10 = ______
