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
4 × 10 = ______
77 + 20 = ______
82 − 10 = ______
31 + 10 = ______
28 + 10 = ______
87 + 10 = ______
3 × 10 = ______
1 × 10 = ______
50 + 10 = ______
40 − 10 = ______
76 − 10 = ______
60 + 20 = ______
70 − 10 = ______
32 − 10 = ______
74 + 20 = ______
99 − 10 = ______
61 − 10 = ______
35 + 10 = ______
66 + 10 = ______
37 + 10 = ______
