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
98 − 10 = ______
8 × 10 = ______
51 − 10 = ______
54 + 10 = ______
7 × 10 = ______
1 × 10 = ______
61 + 10 = ______
4 × 10 = ______
19 + 10 = ______
23 + 10 = ______
69 + 10 = ______
24 − 10 = ______
5 × 10 = ______
46 + 20 = ______
6 × 10 = ______
84 − 10 = ______
87 − 10 = ______
71 + 20 = ______
20 + 10 = ______
31 + 20 = ______
