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 + 20 = ______
6 × 10 = ______
82 + 10 = ______
18 + 10 = ______
39 + 10 = ______
27 − 10 = ______
44 + 20 = ______
16 + 10 = ______
3 × 10 = ______
87 − 10 = ______
50 + 20 = ______
79 − 10 = ______
48 + 10 = ______
4 × 10 = ______
77 − 10 = ______
11 + 10 = ______
48 − 10 = ______
94 − 10 = ______
79 + 20 = ______
29 − 10 = ______
