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
7 × 10 = ______
82 − 10 = ______
86 − 10 = ______
65 − 10 = ______
76 + 10 = ______
50 − 10 = ______
6 × 10 = ______
69 + 10 = ______
83 + 10 = ______
25 − 10 = ______
9 × 10 = ______
1 × 10 = ______
51 − 10 = ______
66 + 20 = ______
22 − 10 = ______
76 + 20 = ______
71 + 10 = ______
52 − 10 = ______
52 + 20 = ______
30 + 20 = ______
