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
81 + 10 = ______
13 + 10 = ______
83 − 10 = ______
8 × 10 = ______
4 × 10 = ______
52 + 20 = ______
72 + 10 = ______
59 + 10 = ______
9 × 10 = ______
37 + 20 = ______
73 − 10 = ______
45 + 20 = ______
1 × 10 = ______
11 + 20 = ______
25 − 10 = ______
58 + 10 = ______
70 + 10 = ______
90 − 10 = ______
26 − 10 = ______
92 − 10 = ______
