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
70 − 10 = ______
16 + 20 = ______
55 + 20 = ______
70 + 20 = ______
49 + 20 = ______
23 − 10 = ______
40 + 20 = ______
4 × 10 = ______
50 + 10 = ______
94 − 10 = ______
83 + 10 = ______
1 × 10 = ______
40 + 10 = ______
6 × 10 = ______
53 + 20 = ______
36 − 10 = ______
80 + 20 = ______
82 + 20 = ______
3 × 10 = ______
87 − 10 = ______
