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
3 × 10 = ______
58 + 20 = ______
48 + 20 = ______
84 + 10 = ______
89 − 10 = ______
6 × 10 = ______
73 + 10 = ______
47 + 10 = ______
92 − 10 = ______
9 × 10 = ______
49 − 10 = ______
28 + 10 = ______
30 + 20 = ______
1 × 10 = ______
60 − 10 = ______
96 − 10 = ______
40 + 10 = ______
42 + 20 = ______
8 × 10 = ______
52 + 20 = ______
