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 = ______
67 + 20 = ______
7 × 10 = ______
16 + 20 = ______
5 × 10 = ______
32 − 10 = ______
51 + 10 = ______
15 + 10 = ______
13 + 20 = ______
9 × 10 = ______
14 + 20 = ______
30 − 10 = ______
75 − 10 = ______
46 − 10 = ______
29 + 20 = ______
2 × 10 = ______
6 × 10 = ______
79 + 20 = ______
83 − 10 = ______
8 × 10 = ______
