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
69 + 10 = ______
96 − 10 = ______
9 × 10 = ______
22 + 10 = ______
92 − 10 = ______
6 × 10 = ______
1 × 10 = ______
2 × 10 = ______
46 + 10 = ______
97 − 10 = ______
33 − 10 = ______
81 + 20 = ______
82 + 10 = ______
24 + 20 = ______
43 − 10 = ______
52 + 20 = ______
28 + 10 = ______
19 + 20 = ______
77 + 10 = ______
58 + 10 = ______
