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
73 − 10 = ______
9 × 10 = ______
70 + 10 = ______
97 − 10 = ______
69 + 10 = ______
1 × 10 = ______
71 + 20 = ______
21 + 20 = ______
88 + 10 = ______
75 + 20 = ______
82 + 10 = ______
2 × 10 = ______
29 − 10 = ______
24 + 20 = ______
6 × 10 = ______
87 − 10 = ______
46 + 10 = ______
39 − 10 = ______
33 − 10 = ______
21 + 10 = ______
