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
1 × 10 = ______
9 × 10 = ______
7 × 10 = ______
82 + 10 = ______
40 + 20 = ______
73 + 10 = ______
36 − 10 = ______
46 + 20 = ______
61 + 10 = ______
56 + 20 = ______
59 − 10 = ______
50 + 20 = ______
78 − 10 = ______
3 × 10 = ______
99 − 10 = ______
4 × 10 = ______
46 − 10 = ______
93 − 10 = ______
27 − 10 = ______
79 + 20 = ______
