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
49 + 10 = ______
30 − 10 = ______
40 + 10 = ______
24 + 10 = ______
37 + 20 = ______
57 − 10 = ______
20 + 20 = ______
52 − 10 = ______
5 × 10 = ______
22 − 10 = ______
40 + 20 = ______
64 − 10 = ______
32 − 10 = ______
16 + 10 = ______
1 × 10 = ______
8 × 10 = ______
14 + 20 = ______
58 + 10 = ______
38 − 10 = ______
9 × 10 = ______
