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
24 + 20 = ______
97 − 10 = ______
8 × 10 = ______
9 × 10 = ______
46 − 10 = ______
6 × 10 = ______
91 − 10 = ______
12 + 20 = ______
1 × 10 = ______
4 × 10 = ______
28 + 10 = ______
98 − 10 = ______
62 − 10 = ______
60 + 20 = ______
69 − 10 = ______
58 + 20 = ______
71 + 10 = ______
87 + 20 = ______
24 + 10 = ______
17 + 10 = ______
